Boost throttle response and simplify your engine setup with the Holley 450 cfm Chokeless Mechanical Secondary Carburetor—a compact, performance-driven solution designed for small displacement engines, dual-carb setups, and lightweight street/strip builds. Known for their legendary performance and tunability, Holley carburetors have been a staple in performance applications for decades—and this model is no exception.

Delivering a crisp 450 cfm airflow, this carburetor is ideal for V6s, small-block V8s, or dual-quad applications where quick acceleration and precise fuel control are essential. The absence of a choke makes it perfect for race or hot street engines that don't need cold-start enrichment, simplifying the design and improving airflow.

This 450 cfm carburetor features mechanical secondaries for instant throttle response and control, making it a favorite among drag racers and weekend warriors who want power on demand. Its single fuel inlet and side-hung float make plumbing and tuning straightforward, while Holley's time-tested design ensures long-term durability and performance.

Whether you're building a high-revving small block or fine-tuning a dual-carb tunnel ram, the 450 Holley carburetor provides the airflow, adjustability, and reliability you need to hit the sweet spot between power and driveability.

Backed by Holley's industry-leading reputation and built with precision, this carb is a great choice for anyone looking to maximize engine efficiency without overcarbing. When you want a simple, no-frills performance upgrade, trust Holley to deliver the results.