Holley 121-5 Accelerator Pump Discharge Nozzle
Limited 90 Day Warranty
Specifications
Compatibility - Holley Model 4150/4160 Carburetors
Nozzle Sizes (IN) - 0.050 Inch
A good selection of accelerator pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. The nozzle hole size determines the rate of fuel discharge. A larger hole will shoot the fuel at a faster rate and with less pressure than a smaller hole. Sizes are stamped on each nozzle.