Carburetor Standard Main Jet - 122-40 pads-and-shoes these systems are constructed from

these systems are constructed from 2

00” stroke crankshaft

3L V8 265 CID with 2BBL OR 4BBL Carb

4 V8 2008 - 2009 Dodge Charger SE 345/5

7L V8 1983 Oldsmobile Cutlass Calais   350/5

Carburetor Standard Main Jet - 122-40 pads-and-shoes these systems are constructed fromOverview: 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 &