Carburetor Standard Main Jet - 122-87 flowmaster and Ford 351C/351M/400M engines

and Ford 351C/351M/400M engines

HDR CRMC 66-74 CHVY/GMC TRK

188 Jet Size

NOTE: If the fitment on your B Body does not match this kit

BLB-102-SS2A

Carburetor Standard Main Jet - 122-87 flowmaster and Ford 351C/351M/400M enginesOverview: 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 . 103" Jet size 1 4 32 Thread Sizes from