The Edelbrock accelerator pump cam kit (#12403) is an assortment of eight different cams for fine-tuning the accelerator pump on Holley 2300, 4150 and 4160 series carburetors. Each cam features a distinct lift and ramp profile to adjust pump stroke and timing, allowing selection of the appropriate shot for engine requirements. The kit provides the eight cam options needed for calibration without requiring additional parts.
Edelbrock Pump Cam Assortment Kit Includes 8 Cams for Holley 2300 4150 And 4160 Series Carburetors