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The EFI Tuning Evolution

Much of the acceptance of EFI has been due to aftermarket companies making them more user-friendly.

Sonny’s 820 cid EFI Marine Engine

This 820 cubic inch marine engine is designed and built by Sonny’s Racing Engines for endurance boat applications. Using a billet aluminum block with 360-degree water jackets and 5.3-inch bore spacing hemispherical cylinder heads, find out why this engine is one of our Engine of the Week highlights. Engine of the Week is brought to

Terminator X Stealth 4500 EFI System

The Terminator X Stealth 4500 EFI system can support up to 1,500 horsepower naturally aspirated or 1,250 horsepower on forced induction applications.

Terminator X EFI Supports Gen III HEMI VVT, SRV & 46RE Transmissions

Now, both Terminator X and Terminator X Max ECUs will allow you to control and tune the VVT with the use of the plug and play VVT harness.

HP Academy Teaches EFI Online

The HP Academy was started to fulfill the need for some sort of formal training for EFI tuning. Two New Zealanders, Andre Simon and Ben Silcock, founded HPA in 2010.

Holley EFI Expands Lo-Ram Intake Manifold Lineup

The Holley LS1/2/6 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines.

FAST 2020 EFI Training Courses

2 Classes! May 8th & October 16th The perfect course for those considering a switch from carburetors to EFI. Curriculum includes basic terminology, component overview and installation fundamentals for both EZ-EFI and XFI. The class features a live demonstration of an XFI Sportsman system where students get the opportunity to see a system from the first

Sniper EFI Stealth 4150 Fuel Injection Systems

Holley has announced the release of a new fuel injection system from its Sniper EFI division. Modeled after an Ultra XP carburetor, the Sniper Stealth 4150 features four 100 lb./hr. injectors, dual feed configuration and supports up to 650 hp naturally aspirated.

Holley EFI Training Dates Announced for 2020

Holley’s factory training courses are back in 2020 with an updated curriculum to stay current with Holley EFI system updates. These factory direct training classes provide a unique opportunity to get advanced training and technical experience with Holley EFI directly from the people who developed the products.

Howell EFI Ford TBI Kit for Carbureted 6 Cylinder and V8 Applications

Howell EFI now offers Ford TBI kits for any classic carbureted inline 6 or V8 Ford application. The Ford TBI kits are ideal for increasing drivability, and improving fuel mileage and cold starting in older street-driven classics and 4-wheel drive vehicles.

Holley EFI Releases Terminator X & X Max Systems

Holley has announced the release of its all-new Terminator X and Terminator X Max electronic fuel-injections systems. Developed specifically for LS engines and available in 12 different variations.

Holley EFI Releases Terminator X & X Max Systems

Holley’s all-new Terminator X and Terminator X Max electronic fuel-injections systems were developed specifically for LS engines and available in 12 different variations. They’re superior to ordinary stand-alone LS engine-management systems and compatible with numerous applications.

Holley Terminator Stealth EFI 2×4 Components

Holley has announced the release of Terminator Stealth EFI 2×4 Upgrade Components, which allow those who already have a single Terminator Stealth setup to upgrade to a dual 2×4 Terminator EFI setup using the throttle body they already have.

Holley Sniper EFI HyperSpark Distributors

Designed specifically for 258 cubic-inch Jeep engines, these kits utilize a high-output HyperSpark CD Ignition Box, which produces 535 volts of primary voltage, and a HyperSpark Ignition Coil, which send 45,000 volts worth of fuel-burning power to the plugs.

Edelbrock Pro-Flo 4 EFI System

When choosing to upgrade your engine to modern fuel injection, Edelbrock’s Pro-Flo 4 EFI systems give you what you need to upgrade to powerful and efficient sequential port fuel injection.

Holley EFI Components

Holley has announced the release of a large and varied assortment of new EFI components – High Flow Dual Port Boost Control Kits, Current Transducers, EV6 Unterminated Injector Harnesses, Unterminated Flying Lead Main Harnesses, and 1/8-NPT Sensor Blocks.

MSD Pro Billet EFI Dual Sync Distributors & All-New Crank Trigger Distributors

Holley has announced the release of its Pro Billet EFI Dual Sync Distributors and the expansion of its Crank Trigger Distributor lineup. The dual-sync designs are plug-and-play with Holley EFI systems, and the crank-trigger models include all-new versions for numerous Chevy and Ford applications.

Holley EFI Black 351W Hi-Ram Manifolds

Holley EFI has announced its 351W Hi-Ram Manifolds are now available in black. Originally launched in a satin finish, these intake manifolds feature a tapered cross-section design and runner lengths to suit countless different applications.

Holley Sniper EFI Dual Plenum Intake Manifolds for GM LS Engines

Holley/MSD has announced the release of its Sniper EFI Dual Plenum Intake Manifolds. Developed specifically for LS engines and available for both cathedral-port and rectangular-port cylinder heads, they feature dual plenums and dual throttle bodies in a unique, innovative design.

Edelbrock’s Pro-Flo 4 EFI

Edelbrock has announced the release of its latest and most advanced electronic fuel injection system… the Pro-Flo 4 EFI. The Pro-Flo 4’s key advancements are in the all-new compact and water-resistant ECU, which features a faster processor with an upgraded Bluetooth chip for more reliable connectivity with the system’s E-Tuner app.