Accelerator Pump Cam Assortment

The Advanced Engine Design Accelerator Pump Cam Assortment is a color-coded plastic cam kit engineered for Holley and Quick Fuel carburetors. This assortment provides multiple pump cam profiles in a single package, allowing carburetor tuners and engine builders to fine-tune fuel delivery response across different rpm ranges and load conditions without purchasing individual cams separately.

Accelerator pump cams control the rate at which fuel is injected into the carburetor's primary bore during throttle opening. Different cam profiles alter the curve of fuel delivery—a more aggressive cam provides richer initial enrichment suited to high-rpm engines or aggressive driving, while a gentler curve suits street engines or cruise-focused tuning. The color-coded design eliminates confusion during installation and swapping, allowing quick identification of each profile's characteristics. Plastic construction keeps weight minimal while providing the durability required for repeated cycling and fuel exposure.

This kit is essential for carburetor enthusiasts, street rod builders, classic car restorers, and performance engine tuners who need precise control over transition response and off-idle throttle behavior. Whether dialing in a freshly rebuilt Holley carb, optimizing fuel economy on a stock engine, or chasing peak performance on a modified combo, having multiple cam options eliminates the need for repeat orders and speeds up the tuning process. Compatible with Holley and Quick Fuel carburetors, this assortment is a practical addition to any carburetor tool collection or machine shop inventory.