Accelerator Pump Discharge Nozzle Check Needle; Replacement; For Holley 4150/4160/4500 Series Carburetors;
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. For example, the number 31 indicates that the nozzle hole size is .031-inches. Various styles of nozzles are offered by Holley.
- Replacement Part
- Includes 2 Gaskets
Application Summary:
| Year |
Make/Model |
| Replacement |
pump discharge needles for all Holley 4150 |
| and |
4500 series carburetors. |
Additional Information:
