Carburetor Standard Main Jet - 122-83 WHEELCYLINDER Real-Time fuel map learn

Real-Time fuel map learn

6L V8 1955 - 1957 Chevrolet One-Fifty Series   265/4

Mandrel bent tubes provide consistent tubing diameters for better exhaust pulse flow and improved performance

and reliability over the factory unit

3 V8 2016 Chevrolet Silverado 1500 LT 262/4

Carburetor Standard Main Jet - 122-83 WHEELCYLINDER Real-Time fuel map learnOverview: 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 &