ACC PUMP CONVERSION KIT (30cc to 50cc)

Holley's carburetor accelerator pump conversion kits (30cc to 50cc) offer instantaneous response to pull strongly through the rpm band! A must for tunnel ram setups, these kits are ideal for those who demand ultimate performance from their Holley carbs. These kits increase fuel capacity and eliminate flat spots off idle, or at any other rpm range. These kits include everything required for easy installation, including a new pump housing, stud, arm, diaphragm, spring, and longer pump housing screws. For 2300/4150/4160 Series Carburetors.