Accelerator Pump Conversion Kit - 50cc 

Accelerator Pump Conversion Kit - 50cc

Models 2300, 4150, 4160
Instantaneous response! Pull strongly through the RPM band! A "must" for tunnel ram setups! This kit is for those who demand ultimate performance from their Holley carburetor(s). The Holley 50cc accelerator pump will substantially increase fuel capacity over the standard 30cc pump system. Eliminates flat spots off idle or at any other RPM range. This kit includes everything required for easy installation including new pump housing, arm, diaphragm, spring and longer pump housing screws.