Holley Performance Products is proud to announce the release of its complete line of Avenger, HP, and Dominator EFI systems for those wanting to make the switch from a carburetor or upgrade from their factory ECM’s. These systems cover everyone from entry-level users all the way to professional racers. All include Holley’s revolutionary self-tuning fueling strategies to take away tuning fears from novice users or save time for the experienced user.

Holley Avenger EFI

The Avenger EFI systems are complete “bolt-on-and-go” systems. They can be purchased in 2BBL TBI or 4BBL TBI as direct replacements for Carburetors or in 4BBL or Stealth-Ram™ multi-port variations. They will feed up to 600 horsepower and setup is performed on the included hand-held controller eliminating the need for a laptop. Once setup is completed, the last step is to start the engine and let the Avenger self-tune for optimal performance and economy.
Avenger EFI Features:
• Self-tuning fueling strategy tunes while you drive – Designed for the user that wants ease of use without having to be a “tuning expert”
• Requires no laptop computer to set up or tune – Included full color LED hand-held controller offers simple setup and easy tuning of basic parameters such as engine idle speed. Still allows for users to change other parameters to further fine tune base calibrations
• Come complete with all hardware to retrofit EFI on a non-EFI vehicle including fuel pump
• Dedicated fuel and oil pressure inputs
• Allows for computer controlled ignition timing if desired
• System can be upgraded in the future to a Holley “HP EFI System” if desired
• Small Block Chevy multi port kits come with 36 lb/hr injectors and are designed for up to 500 HP
• Big Block Chevy multi port kits come with 48 lb/hr injectors and are designed for up to 600 HP
• Three versions of 4 bbl TBI kits available:
– 700 CFM with 65 lb/hr injectors – up to 400 HP
– 900 CFM with 75 lb/hr injectors – up to 525 HP
– 900 CFM with 85 lb/hr injectors – up to 600 HP

Holley HP EFI

Holley HP EFI systems are capable of controlling applications from mild street cars to full race cars. They are completely tunable via laptop to give users complete control, but also include self-tuning strategies if the user wishes to use them. HP EFI systems are available in the same configurations as the Avenger units, plus a universal multipoint, plug & play systems for GM LS engines, and ECU only. HP systems come with boost control, nitrous control, water/meth Injection control and more by way of 4 configurable inputs and 4 configurable outputs. The HPs also have internal data-logging, distributorless ignition control, as well as individual cylinder fuel & spark control.
HP EFI Features:
• Optional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel
• Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
• Eight channel Distributorless Ignition (DIS) outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
• Plug and Play control of factory GM 24x and 58x LSx engines
• Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors. More channels can be added via CAN bus
• Internal data-logging standard with a huge 2GB of memory
• 4 Stage progressive nitrous control
• Turbo boost control
• Integrated water/methanol injection control
• Self-tuning fuel table strategy greatly simplifies tuning process
• Individual cylinder fuel and spark control allows you to unlock your engine’s potential

Holley Dominator EFI

The Dominator system builds upon everything the HP system features, plus the addition of electronic transmission control, drive by wire throttle body control, rev limiters and more. The Dominator systems have a massive amount of inputs and ouputs to allow nearly any combination of usage. Both the Dominator and HP systems can be tuned with Holley’s unique full color 5.7” LCD touch screen.
Dominator EFI Features
• Twelve sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 24 low or high impedance injectors as a standard feature. Multiple staged injector strategies.
• Twelve channel Distributorless Ignition (DIS) outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
• Plug and Play control of factory GM 24x and 58x LSx engines
• Integrated electronic transmission control. Controls GM 4L60E and 4L80E transmissions with more to come in the future
• Integrated dual channel wide band oxygen sensor controls. Works with NTK or Bosch sensors. More channels can be added via CAN bus.
• Integrated drive by wire throttle body control. Can control two drive by wire throttle bodies
• 4 stage progressive nitrous control
• Turbo boost control
• Integrated water/methanol injection control
• Integrated “Data Acquisition and Control” allowed with massive amount of programmable inputs and outputs
• Internal data-logging standard with a huge 2GB of memory
• Self-tuning fuel table strategy greatly simplifies tuning process
• Store and change between four calibrations
• Individual cylinder fuel and spark control allows you to unlock your engine’s potential
• Optional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel

For more information, visit Holley EFI.