Carburetor - 770CFM Ultra Street Avenger

The Carburetor - 770CFM Ultra Street Avenger by Holley is designed for street-driven performance builds, offering reliable fuel delivery and real-world drivability. This carburetor caters to enthusiasts and mechanics who seek a balance between aggressive horsepower gains and everyday usability, avoiding the compromises associated with pure racing carburetors.

At the heart of the Ultra Street Avenger is Holley's dual-feed design and mechanical secondaries, which effectively manage fuel flow across the entire RPM range. This design eliminates the complexities and tuning challenges often found with vacuum-operated systems. The 770 CFM rating is ideal for small-block and mid-size engines, providing the necessary air-fuel mixture control for smooth cruising and powerful acceleration.

Street enthusiasts, restomod builders, and experienced mechanics will appreciate the factory-calibrated metering system and fuel-delivery circuits, allowing for straightforward installation without extensive tuning. The compact footprint and lightweight design make it a direct bolt-on replacement for many classic and custom applications, ensuring compatibility and ease of use.