Accelerator Pump Nozzle Check Needle - 121-5 regularcab 3/8 in Feed Line with

3/8 in Feed Line with 5/16 in Return Line (If you need 5/16 Feed and 3/16 Return then you need WGL0356OM)

8L 6 Cylinder AND a Second Design

If your Challenger/Barracuda/Cuda has a Right Front Line that routes OVER the Passenger Side Frame Rail you need EKT7205OM

if you have the 8-3/4 Inch Rear Axle then you will need YRA6702SS

4L V8 1979 GMC P1500   454/7

Accelerator Pump Nozzle Check Needle - 121-5 regularcab 3/8 in Feed Line withOverview: Replacement pump discharge needles for all Holley 4150, 4160, and 4500 series carburetors. Features: Genuine Holley Quality Parts Application: Year Make Model Submodel Engine Size Universal Specs: Brand Holley Color Silver Emission Code 5 Material Aluminum Product Type Nozzle Check Needle Warranty Limited 90 Day