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Holley EFI Tech & Support

New & Hot Holley EFI Parts
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Holley EFI
LS2/3/7+ (58x/4x) Engine Main Harness Extended Length
$499.95
Part# 558-134
Holley EFI
LS1/6 (24x/1x) Engine Main Harness, Extended Length
$499.95
Part# 558-133
HyperSpark Ready-To-Run Distributors
$389.95
8 Products
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Holley EFI
Holley EFI Fuel Regulator 6AN
$181.95
Part# 12-894
Holley EFI
Holley EFI Pressure Gauge
$29.66
Part# 26-507
Sniper HyperSpark Ignition
$15.7 - $799.95
70 Products
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Holley EFI News
Tech, Features, News and Videos
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Yellow BulletDrag RacingHolley EFI
Three Holley EFI Racers End The Yellowbullet Nationals In The Winner's Circle
Jason Reiss
09/22/2022
news
ignitionHyperSparkHyperSpark Ready to Run Distributors
How to Install a Sniper HyperSpark Ready-to-Run Distributor
Todd Ryden
08/23/2022
tech
IgnitiondistributorHyperSpark
New HyperSpark Ready-to-Run Distributors Easily Add Ignition Control to Sniper EFI
Todd Ryden
08/22/2022
tech
Sniper EFIHolley EFIignition
Sniper EFI HyperSpark Ready-To-Run Distributors Add Timing Control For Holley EFI Systems
Holley Video Team
08/19/2022
Video
EFICarburetorHolley EFI Tech
Tech: How To Go From Carburetor To Fuel Injection
Bradley Iger
08/18/2022
tech
Holley EFIfuel pumpCarburetor
How To Run An EFI Fuel Pump On A Carbureted Engine
Holley Video Team
08/15/2022
Video
NMRAHolley EFIford
Holley Performance NMRA Racers Battle At US 131 Motorsports Park
Evan Smith
08/10/2022
Events
ChevroletCorvetteLS Swap
Solar Flare: This 1963 Corvette Was Built From The Ground Up To Be Ran Hard
Bryan McTaggart
08/09/2022
features
Holley EFITerminator XGen III Hemi
Deep Dive: Holley Terminator X For The Gen III Hemi
Bradley Iger
07/25/2022
tech

About Holley EFI

Holley is quickly becoming The New Standard In EFI! Holley’s HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley’s EFI throttle body powers every NASCAR Sprint Cup Series™ team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win the 2013 JEGS All-Star race. But that’s not all. The world’s best hot rod builders and tuners are making the switch to Holley EFI. Builders like Dave Lane who used Holley EFI to power the 2013 Goodguys Hot Rod of the Year and tuners like Steve Morris who use it to build some of the baddest forced induction beasts on the planet. It’s the easiest, most refined, feature-rich system that money can buy. But, don’t take our word for it, see what the best are saying about Holley EFI!