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Holley sniper efi stumbles

holley sniper efi stumbles 1) Fuel Pump for EFI. As I stated above, the problem lies in a firmware setting that cancels out very slow TPS based acceleration enrichment but it's set too high for some vehicles. Here is the story. I have the Sniper now installed and I'm having problems. I plan on making only one small change at a time to the software so I don't confuse myself while I learn how to tune the Sniper EFI. Most tuning parameters and software functions can be found by selecting an icon from the toolbar. When I finished the install on my C10, I set it as follows: 13. Holley Sniper EGFI Hyper spark Ignition (556-151) $205. All EFI systems need a large fuel filter to trap dirt and yet not reduce volume. Hi all. A quick way to test an accelerator pump is to remove the air cleaner assembly and look down the primary throat(s) of the carburetor and open the throttle linkage. 87. By Brian Wagner February 10, 2020. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. Buy Holley 550-511K Sniper EFI Self-Tuning Master Kit: Fuel Injector Kits - Amazon. But I still had the diode that came with the kit so I gave it a try. The Holley Sniper EFI Quadrajet is a self-contained throttle-body injection system that's a direct replacement for spreadbore Quadrajet carburetors found on many classic GM vehicles. Idle Air Control (IAC) Motor Testing Techniques (TBI Systems) Improving Sniper / Terminator X Ignition Timing Control. When I take my foot off the gas, it pins full lea Discussion Starter · #1 · Mar 11, 2016. I have the stock dizzy Mercruiser 4. - Verify Wiring - ECU must be powered and grounded directly at the battery and the battery is fully charged. I broke in the cam on the new engine (SBC 400) with the sniper and dual sync, also with really no issues. Still using the "other" EFI unit, but it has the same function for spark Wiring and Configuring Sniper/Terminator X EFI Systems for Nitrous Oxide. Every part of the Holley Sniper EFI Systen installation is a breeze but a few folks are challenged to get the idle rpm set correctly. Separating the Connectors on Sniper & Terminator X Touchscreen Display. These items are shipped from and sold by different sellers. This is a great time to visually inspect the overall Sniper EFI install. Free shipping  Holley Sniper EFI FUEL INJECTION INSTALLATION MANUAL. Tags: Carburetor Installation and Tuning, Video, carburetor tuning and adjustments. Idle Tuning is a very important part of tuning any EFI system, especially our self-learning units like Sniper or Terminator X EFI. For I was happy with peace of mind. 5 at cruising, and 14 at idle. low compression, vacuum leaks). So, I finally got my engine installed into my new Bronco. So I don't really NEED to run E85 in this car, but I'm doing so Hi Guys, I have a GT350 setup (from a 67) in my 65. It took several things. One of the great features of Holley’s Sniper is the ability to set your air/fuel ratio (AFR) where you want it. Pink Wire must be attached to a 12V+ switched source that has voltage during cranking and run positions of the ignition switch. Fuel and Air Systems. No hesitation and no bogging. IT IS JUNK and will cause you headaches. I’m still running the stock distributor at the moment and hadn’t planned on upgrading it when I started thinking of going to fuel injection. 73 12-bolt Eaton posi differential. It is set up to run a F/A ratio of 12. I would highly recommend the switch. This is especially noticeable at tip-in or low throttle input, such as when you are leaving a stoplight. com. jpg. Disconnect the fuel or EFI (since the EFI doesn't do timing in this case) and give it a good crank at half throttle. $1,039. Sniper EFI software was designed to make navigation simple and easy. I just installed Holley Sniper EFI in my Falcon today. To do this you will open the throttle all the way (WOT). Information is still a bit sketchy at this point. The enjoyable for drive is 100% for sure, no stumble, bog or All Sniper EFI 2-barrel systems put an end to cold-start issues, hesitation, vapor lock, and flooding. After the install is completed does it really more or Holley Sniper EFI self-tuning fuel injection systems deliver all the benefits—and none of the hassles. Holley Sniper EFI 2300 Two-Barrel Fuel Injection Systems. Still have the A/C kick up and the wot shut off for the A/C to wire. I did the desmog and added the Holley Sniper. Last year, just a few months after finishing my install of the high performance engine I'd had built, my '81 Bronco was rear ended and totaled. Buy the selected items together. After the install is completed does it really more or Ford Gran Torino - Holley Sniper EFI - Engine Stumble - DiagnosesSo I got the Torino out of hibernation and discovered that she was going extremely lean when I've put in the Holley in-tank electric fuel pump and the Holley Dual Sync Distributor (565-202) along with the Sniper EFI Coil Driver Module (very annoying that they don't make it clear you need this if you're not running an MSD box). Sniper Stumbles After Warmup. Holley’s new Sniper EFI master kit for C2 and C3 Corvettes is a specific fuel system economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the Now that we have installed the Holley Sniper EFI the car is a completely different beast. You can use the master kit and mount the pump on the frame rail, but even Holley suggests an in-tank pump. Compression ratio is in the 10. g. 14 de abr. Fresh air will lean out the flooded condition. The fuel delivery system can now be removed. 5" WH SL, Protofab Bumpers, Bilstein 7100 on F250 Towers, Hydroboost, 35" KM2's, 4. So, with Gateway’s blessing, Dorvillier brought the Bronco to the Edelbrock Garage to see if the Pro-Flo 4 multi-port EFI was the answer. Keep in mind, this system will not cure any pre-existing issues with your engine- it will magnify them and drive you nuts (e. I’m curious how the Sniper will do over the next few years. Holley Sniper EFI on Roush 427R. Sniper Ignition Wiring with Holley Distributor, with CD Box (MSD 6A Shown) Here's a great video detailing the setup of the Holley Dual-Sync Distributor with the Shiper EFI System. Holley Sniper 550-869 fuel injection system is universal with no listed vehicle applications. 1 at idle, 14. 17 ratings. Getting the throttle blades and IAC to work together will keep your fuel injected hot rod running smooth and predictable. com no stumbling on acceleration, and all around responsiveness. The next firmware update will have a user programmable setting to rectify this. Beware of poor quality castings on Quickfuel carbs. They’re bolt-on carburetor replacements designed specifically for vehicles that came standard with a 2300 2BBL Holley carburetor, including the classic Mustangs, Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels Holley’s Sniper EFI BBD System Has Your Answer! Aug 20, 2018 Bryan McTaggart New Products , Sponsor News 2 The Carter BBD two-barrel carburetor saw a lot of use over it’s lifetime, but one of it’s more well-known applications was on just about every Jeep CJ with the AMC 258 straight-six made between 1971 and 1986. Quick Summary: I purchased a used Holley HP EFI system with Ford harnesses off a member on here. Man does it make a difference in the way it idles. I've been driving my car with the Sniper EFI installed for 2-3 months, thus I would imagine the fuel map is more or less tuned. Sniper EFI four fuel injector kits can support up to 650 HP. de 2018 Hi there, Finally got my Chevelle out of the garage with the new engine this morning. Hi Guys, I have a GT350 setup (from a 67) in my 65. This item: Holley 550-511K Sniper EFI Self-Tuning Master Kit $1,310. Which would explain that. 30 31 Spline Yukon Goodies Holley EFI, Sniper or Stealth sniper. I don't consider ignorance a problem so not meant to sound derogatory, just stating the truth. Hide details. and a couple seconds later it had a slight stumble Holley's Sniper EFI system is inline with a good ol' carb in terms of simplicity and ease of installation, but far superior from a driveability standpoint. The other issue was a stumble on 1975-1981 SmallBlock or Big Block Holley Sniper EFI HyperSpark Ignition Kit 1968-1981 Holley Sniper EFI Quadrajet Spread Bore Throttle Body Upgrade Are you tired of rebuilding the 50+ year old Rochester Quadrajet Carburetor on your 1968-1981 Corvette or for that matter; any other classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Holley/MSD has announced that Sniper EFI 2300 2-Barrel Self Tuning Kits are now available in three distinct finishes – shiny, classic gold, and black ceramic. Introducing Holley Sniper EFI 2300! It's perfect for any vehicle that came standard with a 2300 Holley Flange like some Fairlanes, F100s, Javelins, Mustangs, Thunderbirds, Cougars and more. Once The Holley Sniper EFI 2300 2-Barrel Self Tuning Kits are bolt-on carb to EFI conversion systems meant for people who have a 2-barrel carburetor or Quadrajet carb. Thoughts on primary side jets dual 1850s. According to Dorvillier and Gateway Bronco CEO/President Seth Burgett, there were just too many issues with the Holley Sniper TBI that couldn’t be solved, even with the help of Holley Tech Support. Sniper EFI throttle body height is right inline with most any carb out there, holley or edelbrock, so if the air cleaner works with one of them, it'll work with the sniper. Find helpful customer reviews and review ratings for Holley Sniper Polished EFI Fuel Injection System Complete Master Kit 550-510K at Amazon. de 2017 If this car was not old school I would stick the Holley Sniper EFI I have sitting in box onto this car. de 2017 Any One using Holley's sniper EFI? The FAST systems would stumble and grumble with pretty much anything but a tach output from an  Attention Sniper Owners! We want your feedback! When installing a Sniper EFI, which fuel pressure regulator setup do you prefer? Added by Holley. It felt like it was flooding out at low speed, low RPM. Price: $13. Holley Sniper EFI, Sniper Distributer for ease of use with Sniper EFI timing control. Total price: $1,555. Ships from and sold by JEGS. EFI is going on my 67 Impala . Trending at $799. A Master Kit is also available that includes everything to build a complete fuel system, including 20 feet of 3/8-inch Earl’s Vapor Guard fuel hose, an 80 GPH in-line universal electric fuel pump, fuel filters, all the necessary hardware Does anyone have any hands on experience with either the Holley Sniper or the Fitech EFI systems? Considering making some changes to my truck and was looking at these two systems. Add all three to Cart Add all three to List. Sniper EFI products are part of the Holley Performance family and offer economically priced self-tuning fuel injection systems. You may already have an EFI compatible fuel pump in your tank, with a bypass regulator which would allow it to work with low pressure that a carb needs. 5 @ W. If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email. Top 10 Holley Sniper EFI Tech Tips, Holley Technical Training Manager's top ten "suggestions" for Holley Sniper EFI System installation issues. 1 Sniper Stealth 4500 (550-841 Shiny, 550-842 Black, & 550-843 Gold) Holley Sniper EFI FUEL INJECTION INSTALLATION MANUAL Troubleshooting - engine hesitation. there are no signs of knock retard and carnt hear any knock but Holley sniper stalling at idle - joer g-ehlers-wesseln. Holley Sniper EFI 550-552 Holley Sniper EFI Autolite 1100 . I used MSD EFI 6 ignition box and coil. 78 Malibu, 402 getting eddy heads and new cam, 5200 stall, th350, holley sniper EFI, 9" 3:70. Best Way to set the idle mix on a 4160. If you follow these instructions you can set the ignition configuration as follows: Ignition Type: Holley Dual Sync. Ok so I am having a problem. Fuel maps and so on. OK, let me start with I know very little about the EFI units. Summit Racing Answer - 9/6/2019. Key to the improved performance of a system like this is the fuel injector location, which is at the end of the runner on the intake manifold right before the air flow stream enters Idle Tuning is a very important part of tuning any EFI system, especially our self-learning units like Sniper or Terminator X EFI. 41 Details. 6 out of 5 stars. FUEL SYNC The Holley Sniper EFI Self-Tuning Kits feature all the benefits of EFI and are a perfect option for street cars, muscle cars, and off-road vehicles. Eliminate typical carburetor cold starting issues, hesitations, flooding, and vapor lock. Holley Classic Gold Sniper EFI Single Barrel Self-Tuning Kit for 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 and 1973 Mustangs with Six Cylinder engines. 70 Chevelle, Vortecpro 496, TH400, Moser 12 bolt, custom Tom's Eaton posi, 3. Holley Sniper EGFI Hyper spark Ignition (556-151) $210. EFI. Save 45% Lowest price in 30 days. Sniper EFI Software According to what is presently posted on this Holley support forum, the base Sniper EFI will not need a CAN USB adapter and will interface with a Windows PC by removing the SD card from the handheld display and use a card reader to open the configuration files. $799. Alimenta até 650hp com os 4 injetores de  Holley Sniper EFI 550-511 Factory Refurbished Self-Tuning Throttle Body Kit. Man, that was the huge breakthrough. It's always something. 2) Fuel Lines. Once Holley 20-16 Sniper Efi Throttle Lever Extension. The new Holley EFI systems have a 31 x 31 cell Fuel Table (that's enormous). 11-24-2014 #183 The reason EFI is gaining popularity is people don't have the knowledge, of care to learn it or keep up on the tuning as weather changes. This throttle body is designed to bolt to a square bore pattern style intake manifold. It felt like it was going to stall out at stop I'm guessing the Holley uses Idle Spark control. 4. I am getting pre detonation with whatever fuel type I run when I lug the motor. I installed a Holley Sniper Retrofit pump in my fuel tank. 1970 - Ol'Blue - Grabber Blue, 3. I'll be going with the Holley replacement tank kit as well, replacing all the fuel lines (true non return). This item: Holley 550510K Sniper Efi Master Kit-Shiny. With the MSD, you need an adjustable rotor to properly phase the rotor to the cap terminals. de 2020 I installed the Holley Super Sniper Stealth 4150 on my 68 J-code. 2 at cruise, and 12. Corpo idêntico ao de um carburador, desenhado para servir em coletores de admissão para um ou dois carburadores. The best solution for an EFI fuel pump is an "in-tank" pump. No more stalling, no more hesitation when blipping the throttle and no more bucking/lurching at off throttle crawling. Install was very easy and performance has been better than expected (maybe my old carb was in need of rebuild/replace). The enjoyable for drive is 100% for sure, no stumble, bog or All Big Six Holley Sniper EFI 2300 2 Barrel with the Offenhauser C manifold. Holley Sniper Decal, Sniper EFI Ecu Decal, Part #SNE-566-106. I like everything about the sniper but am worried about price, long term reliability, and having to deal with computer crap. Laptop Access Some TBI systems like the revised MSD Atomic and the Holley Sniper (among others) allow you to access and expand upon the idle, cruise, and WOT AFR and ignition timing settings with access into the actual fuel and spark maps. I removed the tank, had it professionally cleaned at a shop, used the 3 1/4” hole saw to creat room for the pump. Simply just won't take fuel PLEASE HELP! Every part of the Holley Sniper EFI Systen installation is a breeze but a few I notice at 2-3% tps the iac is 18-25% and it stumbles, when the iac gets  11 de abr. The other issue was a stumble on I blamed the EFI and didn't really feel like refreshing my memory and skills on that system and had been reading a lot about the FiTech that had been out about a year at the time. Holley Sniper 07-01-2019, 02:18 PM It was a bit of a pain to set up as it had a very persistent off idle stumble which took some fiddling to tune out. The Holley Sniper EFI handheld display quickly loads and starts a series of options to select. In Stock. The Sniper will control the ignition firing but you need an MSD or Holley Dual Sync distributor to lock out any mechanical advance. $1,337. We replaced a holley 650 DP, that was nothing but trouble, with the Sniper EFI on my Dad's 347, and it was great, really screamed, started instantly without touching the Holley 550-511K Sniper EFI Self-Tuning Master Kit. Holley in fact recommends you get the sniper up and running this way before attempting to allow the sniper to control timing. T, 13. Did the Holley Sniper EFI on my 1986 Martinique and very happy so far (15 hours). First you will need to check the adjustment on the pump. 9 de jun. I just don’t trust being able to drive cross country if I wanted. Car was running fine with a Holley 780 carb on an Edelbrock RPM intake with RPM heads, and a MSD Ready to Run Distributor. Athena: '68 Chevelle, 454, Holley EFI, T-56, SC&C suspension---Raising hell on the Autobahn and German back roads! Currently stationed in Germany, and shes my daily driver. I had no tune to use, so I used the "302 Ford Turbo" tune that came in the software as a starting point. de 2019 Top 10 Holley Sniper EFI Tech Tips, Holley Technical Training Manager's top ten "suggestions" for Holley Sniper EFI System installation  Frete grátis no dia ✓ Compre Holley Sniper Efi parcelado sem juros! Saiba mais sobre nossas incríveis ofertas e promoções em milhões de produtos. out of it. After a cold start and it warms past 160°, it runs great. Detailed instructions of each icon are contained in this manual. Leaking fuel bowl screw gaskets. 99. DO NOT USE the Sniper EFI ignition box that comes in the whole kit deal. It felt like it was going to stall out at stop Holley 550-511K Sniper EFI Self-Tuning Master Kit. neck. Holley Sniper EFI 20-16 Sniper EFI Throttle Lever Extension The Sniper EFI Throttle Lever Extension provides significantly decreased pedal effort and a smoother pedal feel. 73, UMI/Viking front suspension, PMT rear. Summit Racing carries Sniper EFI throttle body kits as well as Sniper EFI fabricated intake manifolds designed to maximize your vehicle’s power while going easy on your budget. My boat has 140 stat so I am waiting on my new thermostat to come via USPS. This is a dedicated E85 car, so everything I talk about below is running with E85. 8 to 11. Reference Angle: 50. If you are having a stumble and no black smoke out the tailpipe then you will need to increase the 1968 Camaro, 383 with Dart Pro 1 aluminum heads and roller cam, Holley Sniper EFI with Dual Sync distributor, Tremec TKO600 5-speed transmission, 3. My Bronco with Holley Sniper EFI was running poorly. We’re using a Holley Sniper Stealth 4500 EFI Sniper Ignition Wiring with Holley Distributor, with CD Box (MSD 6A Shown) Here's a great video detailing the setup of the Holley Dual-Sync Distributor with the Shiper EFI System. Tick Performance is proud to be a warehouse distributor for the entire Holley product line. 06 inch, with closer to the lower limit being preferable. I can set up the car just fine, part throttle, full throttle, cruise is just fine. Read honest and unbiased product reviews from our users. 95. It just moves the timing up and down to help control the idle rpm's. It may also explain you seeing the timing bouncing around at idle. The system is like new! I painstakingly installed/wired the system on my turbo 331 Fox Body Mustang. Tell me your thoughts/ recommendations. The only issue is the 160 degrees water temp for EFI engines. Hi there, Finally got my Chevelle out of the garage with the new engine this morning. Sniper efi, RobbMc PowerSurge. I decided to install the Holley Sniper EFI on my 68. The AVENGER EFI system kit includes a block-off plate that will fit small and big block Chevrolet and Chrysler engines. To simplify Holley Sniper EFI 20-16 Sniper EFI Throttle Lever Extension The Sniper EFI Throttle Lever Extension provides significantly decreased pedal effort and a smoother pedal feel. de 2015 Hollley EFI Idles but stumbles when applying the gas above idle. But not being able to leave well enough alone I purchased the Holley Sniper EFI unit which I had heard many good things about. I can't wait to change my car over to EFI controlled timing. I blamed the EFI and didn't really feel like refreshing my memory and skills on that system and had been reading a lot about the FiTech that had been out about a year at the time. There were rumors of the Holley Sniper at the time but nothing confirmed so the next closest system was still in the $2500 range. AED bottom feed high flow needle and seat. Page 2 of 2 < Prev 1 2. When I come off the throttle, the revs will drop, and either catch at about 800 rpm stumbles or almost stalls to 100 RPM then recovers. This will be fitted on my 68 fastback with the 351c, Full MSD ignition, long tube headers, edelbrock torker 351 (2760). IR intakes for sure are much more sensitive to acceleration enrichment parameters than a standard intake with far greater plenum volume so you might need some tweaking in On Holley carburetors, the power valves can easily be blown out due to an engine backfire. Holley's Sniper EFI system is inline with a good ol' carb in terms of simplicity and ease of installation, but far superior from a driveability standpoint. de Page 15/17 I spent some time cleaning up older wiring and installing the new EFI stuff. Holley Sniper EFI install. First off, I had idle problems and still do sometimes. My engine is a 327 SBC with aluminum Brodix cylinder heads and a cam that is relatively (but not SUPER) aggressive. Before I had all kinds of problems trying to get the big racing carb to idle with the power steering and A/C on. I've ran the Sniper EFI system with the Holley dual sync on my old engine (SBC 350) with no issues. Was: $25. That is the only change I made to the default Sniper config file. Read this manual before using this product. EFI Swapping A Dragster With A Holley Sniper Stealth 4500: Part 2. Read the Instructions, Check Your Wiring, Double-Check Your Ground, Triple-Check Your Ignition, Inspect Your O2 Sensor, Fuel Pump Location, Hard Starting Issues, Sniper EFI Sniper EFI Idle Tuning. Usually ships within 2 to 3 days. I followed instructions and installed the pump. Ships from and sold by Speedway Motors. Thinking of doing an experiment. Top 10 Sniper EFI Installation Tips from Holley's Tom Kise Posted by Chris Myer 08/11/17 41 Comment(s) Sniper and Terminator X , Holley Technical Training Manager Tom Kise recently published a list of ten "suggestions" for Sniper EFI System installation and I offer them here essentially unedited. Ok this is good info and thanks for the clarification. Dec 16, 2020 #21. would i be able to control timing through the sniper with this set up. holley sniper efi master kit review. 16 de jun. Holley sniper starts then stalls. They put an end to carburetor cold start issues, hesitations, vapor lock, and flooding. The too much fuel is a little harder to check, but it is like a clear flood condition or a boiled over carburetor hot start. Brand: Holley. O. 23. My EFI is not running very wellit stumbles, stutters, and runs lean  21 de jul. Show details. stalling, surging, backfiring, stumbles, or poor vehicle drivability when the vehicle is cold. Choose items to buy together. Re: Holley Sniper Fuel System Setup « Reply #12 on: September 13, 2017, 09:17:24 AM » I ended up installing an inline pump (included with the Holley Sniper Master Kit), came with all the fittings, pre-post fuel filters and tons of hose/hose clamps. I have a local shop that will be doing the Sniper efi conversion this spring. Turn engine off (remove tape). Parts used: Holley Sniper EFI Self-Tuning Fuel Injection Systems. I've ran the Sniper EFI system with the Holley dual  9 de abr. Demystifying Holley Terminator and Sniper Ignition Hookup. The system is wildly popular as it is priced right and brings the users all of the benefits of EFI in an easy to install package. See all 36 photos 28. First is the system type, which includes the part number of our Sniper EFI kit. Holley recommends removing the mechanical fuel pump, if so equipped, and blocking-off the fuel pump mount using the provided fuel pump block off plate. 0. 015" clearance between the pump arm and lever. My EFI is not running very wellit stumbles, stutters, and runs lean when you try to get going and at cruise. It does however, suffer from hesitation upon acceleration from idle. and bolts. de 2021 As an example, when we first converted this big-block El Camino with a Sniper throttle body, Holley suggests to convert the fuel side first  Free Shipping - Holley Sniper EFI Self-Tuning Fuel Injection Systems with before it would stumble, hesitate or even lug off idle and at part theottle. The factory air cleaner will fit on to this throttle bodies 5 1/8 in. Push the pump arm lever down and then adjust the pump override spring to obtain . The car starts almost instantly and the throttle response is immediate. I’m stuck between the Holley Sniper TBI EFI with hyper spark or a 650 vacuum secondary quick fuel carb with the usual MSD stuff. I bought it back and stripped it down to the metal, taking all my upgrades, engine, transmission, etc. Footage taken from Holley Carburetor Installation & Tuning DVD. 0 :1 range. The car drives OK overall. what should i expect regarding power/mpg. Here are some tips! IntroductionOk, we have enough Sniper systems out there that I thought it would be a good idea to create a posting on challenges that might arise during installation. I had no idea this EFI unit would make this much of a difference. These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. That would show a lack of fuel delivery as an issue. I made some minor adjustments but haven't gotten in detail yet with the programming so it's pretty much out of the box as far as set up. I have reservations with the heat/dust/vibration that we deal with in off road racing and curious how these systems will hold up. 550-516. And Stubborn lean stumble at tip-in. If tuning is a problem, by a Sniper or some other self tuner and stick it on the car. 1975-1981 SmallBlock or Big Block Holley Sniper EFI HyperSpark Ignition Kit 1968-1981 Holley Sniper EFI Quadrajet Spread Bore Throttle Body Upgrade Are you tired of rebuilding the 50+ year old Rochester Quadrajet Carburetor on your 1968-1981 Corvette or for that matter; any other classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Holley EFI, Sniper or Stealth sniper. 9 at WOT. WARNING! This instruction manual must be read and fully  31 de mai. The car immediately ran smoother, no stumbles and it turned off with the key! The interesting thing is no one at Holley support seemed to know anything about the diodes but I am going to recommend it to anyone installing the Sniper. Holley's new Sniper EFI master kit for C2 and C3 Corvettes is a specific fuel system economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest Try the DFCO and if you notice any lean stumbles or coughs on throttle tip-in from the lean/DFCO coast down then you might have to go back to a slightly richer coast down. Fuel log & fittings deep sixed. 5. Making the decision to move from a carburetor to electronic fuel injection (EFI) for grassroots bracket racing is a big deal, but the parts you actually need really aren’t that exotic at all. By: Bill Tichenor | 12/02/2009 < Back to Motor Life Home. Comp Cam 32-225-4. holley sniper efi stumbles

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