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1958-1985 Chevrolet Impala
Application 58-60 Ford Thunderbird 352CID
Two Choices of Tailpipe Exits
1968-1968 Chevrolet Chevelle 307 CID
Quad Cab (Extended Cab)
Carburetor Standard Main Jet - 122-77 vacuum-pumps 1958-1985 Chevrolet ImpalaOverview: 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: Standard Main Jet . 086" Jet size 1 4 32 Thread Sizes from
