34 results in 0.0130 seconds.
-
Holley Sniper AFR spikes/stalls/dies.
What I have: 454 Chevy Square Body. New Sniper EFI install, having issues with AFR spikes when up to operating temperatures. Sometimes dies or stalls...
Last edited by S_Sprague; 09-02-2023, 12:25 AM. -
Sniper system won’t run.
Hello. I’ve had my Sniper EFI on my Chevelle for approximately one year. Installed it exactly as recommended with all Holley parts with no expenses... -
Hello All
New to the Holley Sniper EFI system. I'm having the Sniper 550-866 Master Kit installed on my '88 Chrysler Fifth Avenue. It's been a two year work in...
-
Sniper timing, Pontiac overheating.
My first post, old car guy and new to EFI. Ive got a new build, Pontiac 455 and have a frustrating overheat issue during cruise RPM. At idle, temperatures... -
Sniper Swap To Terminator
Hi guys. I currently have a Sniper EFI with a Sniper HyperSpark ignition setup. ECU is blown and I'm thinking of replacing it with a Terminator EFI. Question... -
Timing goes flat when I press gas pedal.
Timing goes flat when I press gas pedal.... -
New issues with fuel pump.
Hello all. First post here and I'm not the most car savvy person, but I’m searching for some help and would really appreciate any advice people... -
'65 Mustang 2B EFI cranks, but no start.
Greetings
1965 Mustang Convert
289 V8
Holley Sniper EFI Holley Sniper EFI 550-851 Holley Sniper EFI 2300 Self-Tuning Kit - Classic Gold... -
Sniper BBD '83 Jeep CJ7 misfiring.
A little background, I have a '83 Jeep CJ7 with a 258 that I installed the Sniper EFI BBD, HyperSpark Ignition and distributor system about a year &... -
When to lockout Learning? Lock in a good tune?
Hi Everyone. My Sniper has around 500 KM on it and is running great. Sorted out all the teething issues so it's finally at a good place and driving really... -
HyperSpark Distributor With Coil Driver
Hi! I'm trying to get a combination of a HyperSpark distributor and Sniper EFI to work only using the coil driver, and a traditional canister coil. I'm... -
HyperSpark Quit! Troubleshooting/Isolating failure.
Sniper EFI & HyperSpark distributor CDI box. SBC, has been installed for a year and was running great until yesterday when I got a huge backfire and... -
Tool for Creating Timing Table
I searched the Holley Forums for similar info, but found none. Here's an Excel file based on a very useful tool that I found in the Holley Sniper users... -
On startup Holley Sniper revs to 2800 RPM
Hello. I recently pulled my engine to change oil pan, etc., When I hooked up my Holley Sniper and started it it reved to 2800 RPM and stayed there. I'm... -
Best EFI option for '66 Mustang 289 Auto?
Novice here and I'm looking for some advice and guidance before dropping $2K. I want to swap the Holley 80457-3 carburetor for EFI on my 1966 Mustang,...Last edited by 1966Mustang289; 09-21-2020, 06:37 PM.
