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  Home > Holley EFI >

  Holley Avenger EFI - 2 Bbl TBI Systems

List Price: $1,910.28
Our Price: $1,852.97
Savings: $57.31

Product Code: 550-200


Description Technical Specs Instructions
From the company that brought you the “Bolt on and Go” Street Avenger carb comes the latest technology in “Bolt on and Go” fuel injection… Avenger™ EFI!

The New Avenger™ EFI is intended for users who want a “Bolt on and Go” EFI system without the need for a laptop computer! Avenger™ EFI systems are perfect for performance street engines, most crate engines and mild street / strip applications. Simply bolt on an Avenger™ system, answer a few easy questions and let it do the tuning for you!

The secret is in the innovative Avenger™ EFI hand-held controller and the breakthrough technology of our Self-tuning fueling strategies. The compact, easyto- use hand-held controller guides you thru the
simple setup wizard where you answer a few key questions about your setup. Once that basic information is loaded, you fire the car, run it thru various RPM stages and drive it to tuning perfection! The self learning strategy will automatically tune your engine as you drive to deliver the optimum air-fuel ratios for performance and mileage. 2 MADE EASY

TBI Systems
Replace your carburetor with a “Bolt on and Go” TBI system! Avenger™ EFI throttle body kits are a direct replacement for a carburetor. Plug and play connectors make installation a snap and the Avenger’s Self-tuning capabilities will have you up and running in no time. Come with all necessary parts for a complete installation. All set up is done on the included hand-held controller so no laptop is required!

2 Bbl TBI Systems:
  • 550-200: 670 CFM 2BBL TBI (V8 engines up to 275 HP)
NOTE: Use adapter p/n 17-47 for Holley 2300/Motorcraft 2bbl flange

NOTE: Avenger EFI Systems come with all installation components including wiring
harness, sensors and in-line fuel pump. Does not include HEI distributor ignition
adapter harness (558-304) which is required for computer controlled timing. Return
fuel line to tank not included.

Customer Testimonial Video
  • 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

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