Holley 20-78 | Carburetor Accelerator Pump Arm

These Holley accelerator pump arms are designed to fit Holley carburetors. They are available in steel or plastic, depending on the carburetor model. The pump arms include an adjustable screw to set the air gap between the arm and the accelerator pump diaphragm housing.

• Accelerator Pump Pump Arm
• Brackets/Linkage
• Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
• Plastic
• Accelerator Pump Pump Arm; 30cc; Plastic;
• 30cc
• Plastic 30cc accelerator Pump Arm