Holley Tube Type Accelerator Pump Discharge Nozzles - .037" H753C4959 This 2" Pro Harness set

This 2" Pro Harness set features a small compact design buckle that is lightweight and stays out of the way

BMR Suspension designed the UTCA062 to work well in street performance

• Certified to updated FIA 8856-2018 and SFI 3

Carb recommendation: Any carburetor class allows

Precision II Youth – Our most popular 2-Layer SFI-5 suit is now available in youth sizing

Holley Tube Type Accelerator Pump Discharge Nozzles - .037" H753C4959 This 2" Pro Harness setA 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". Various styles of nozzles are offered by Holley,