Carburetor Standard Main Jet - 122-99 exhaust-systems 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)

Throttle Body Screw

9 L6 2003 - 2007 Dodge Ram 2500 SLT 359/5

8L L6 1964 - 1967 Chevrolet Malibu 283/4

Ball pins polished to a mirror finish

Carburetor Standard Main Jet - 122-99 exhaust-systems 3/8 in Feed Line withOverview: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are flow tested and then stamped with the correct number. Click on Catalog Product Page for complete listing of jets and sizes. Features: Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 &