Holley's Truck Avenger series carburetors have just been taken to the next level. Truck Avenger carburetors are known to go off-roading right out of the box, so what could be better than a Holley Truck Avenger™ carburetor? How about one in aluminum? They save weight and look great. The Aluminum Truck avenger features a chromate finish to protect against the grueling environments encountered by an off-road vehicle. The Aluminum 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 Aluminum Truck Avenger carburetors have the same great features as their zinc counterparts such as a quick change vacuum secondary for easy fine tuning; four vacuum ports for all necessary vacuum accessories; manual choke for precise cold start control; and a built-in fuel filter. The 670 CFM Aluminum Truck Avenger is the perfect carburetor for small blocks or stock big block engines.
Features:
- Aluminum Construction for added weight savings
 - Gold Dichromate finish for extreme off road environments
 - Single feed fuel inlet for ease of installation
 - Optimized off-road calibration that works out-of-the-box
 - Manual choke (Cable driven, hand operated) for precise cold start control
 - 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” descents
 - 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
 - Limited lifetime warranty - Guaranteed to be free from defects in material and workmanship for the life of the product
 
SPECS
| Barrels | 4 | 
|---|---|
| Booster | Annular / Straight | 
| Brand | Holley | 
| Carburetor Use | Off-Road | 
| CFM | 670 | 
| Choke | Manual | 
| Condition | New | 
| Emission Code | 3 | 
| Finish | Gold Dichromate | 
| Fuel | Gasoline | 
| Fuel Inlet | Single | 
| Marine Use | No | 
| Material | Aluminum | 
| Model | 4150 | 
| Primary Main Jet | 68 | 
| Primary Power Valve | 2.5 | 
| Primary Pump Nozzle Size | 28 | 
| Product Type | Carburetor | 
| Secondaries | Vacuum | 
| Secondary Main Jet | 89 | 
| Supercharged Application | No | 
| Throttle Bore | 1.688 inch | 
| Vacuum Ports | 1 timed (spark) port, 2 full, and 1 PCV port | 
| Warranty | Limited Lifetime Warranty | 
| UPC | 090127719848 | 
| Part Number | 0-95670 |