Performance Carburetor 770CFM Street Avenger

The Performance Carburetor 770CFM Street Avenger is purpose-built for street and strip enthusiasts seeking reliable fuel delivery in naturally aspirated engine builds. This 770 CFM unit bridges the gap between mild cruisers and aggressive street performers, making it ideal for small-block V8s, vintage muscle car restorations, and modern engine swaps where consistent air-fuel mixture is non-negotiable. Whether you're tuning a weekend warrior or restoring a classic, this carburetor delivers the precision metering your engine demands without the complexity of electronic fuel injection.

The 770 CFM air-flow rating ensures your engine receives optimal fuel atomization across the entire RPM band, from idle quality through peak power delivery. This carburetor's tuning-friendly design allows seasoned mechanics to dial in jetting and air-bleeds to match your specific engine displacement, intake manifold, and exhaust configuration. The Street Avenger platform incorporates proven Holley engineering with smooth power transitions and minimal stumble, critical characteristics for engines breathing through stock or mildly modified intake passages. At 9.9 pounds, the compact footprint (11.2 x 7.9 x 12.3 inches) fits tight engine bays while maintaining excellent accessibility for plug wire routing and linkage adjustments.

Experienced rebuilders and first-time carb tuners alike appreciate this unit's straightforward design and extensive aftermarket support for jets, needles, and gasket kits. Installation requires a compatible four-barrel intake manifold with standard Holley bolt pattern—verify your existing baseplate or plan a manifold upgrade before purchase. This carburetor excels on engines ranging from 265 to 400 cubic inches, particularly where street drivability and fuel economy matter alongside performance. Proper carburetor selection ensures your machine starts reliably in cold weather, delivers smooth part-throttle response, and holds consistent idle—hallmarks of quality street machinery that earns trust over thousands of miles.