670 CFM Holley Off-Road Truck Avenger Carburetor #0-90670

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  • $493.16
  • Regular price $608.95
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Electric Choke, Off-Road Vacuum Secondaries-4150
The Off-Road Truck Avenger is designed specifically for off-road applications. The unique fuel metering block eliminates fuel spillover through the boosters at extreme angles allowing for 40 degree climbing, 30 degree side hill maneuvers and nose-down descents to avoid hesitations, stalling and flooding typically associated with carbs in an off-road environment. The Truck Avenger features a quick change vacuum secondary for easy fine tuning; four vacuum ports for all necessary vacuum accessories; factory preset electric choke for easy start ups; and a built-in fuel filter. The 670 CFM Off-Road Truck Avenger is the perfect carburetor for small blocks or stock big block engines.

Installation Notes: This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.


  • Gold Dichromate finish for extreme off road environments
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
  • Single feed fuel inlet for ease of installation
  • Optimized off-road calibration that works out-of-the-box
  • Factory preset electric choke for easy startups
  • Vacuum secondaries allow use on a wide variety of vehicles. Quick Change vacuum housing cap allows you to tune for performance or fuel economy (springs included)
  • Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.
  • One piece off-road vent tube eliminates fuel spillover during extreme maneuvers
  • Intended for off-road/off-angle use. Unique metering block designed for flood free operation up to 40º while climbing and 30º during side hill maneuvers & “nose down” decents
  • Limited lifetime warranty - Guaranteed to be free from defects in material and workmanship for the life of the product!
Barrels 4
Booster Annular / Straight
Brand Holley
CFM 670
Choke Electric
Emission Code 3
Finish Dichromate Gold
Fuel Gasoline
Fuel Inlet Single
Material Aluminum
Model 4150
Primary Main Jet 68
Primary Power Valve 6.5
Primary Pump Nozzle Size 28
Product Type 4150 Model Carburetor
Secondaries Vacuum
Secondary Main Jet 89
Supercharged Application No
Throttle Bore 1.563 inch
Vacuum Ports 1 timed (spark) port, 2 full, and 1 PCV port
Warning California Proposition 65
Warranty Limited 1 Year Warranty

Click here for Truck Avenger video with Jack Brinks from Rockcrawler.com

Click here for Instructions for Part# 0-90670

Click here for Avenger Limited Lifetime Warranty

Click here for Carburetor Numerical Listing for Part #0-90670