Standard Main Jet #57 HO122-57 Product:1/4-32" Thread, .056" Hole Size (Pair) The Formula GT Wheel feature

The Formula GT Wheel feature a hand-stitched leather-grained vinyl grip

All pro filter assemblies feature an O-ring for positive sealing in high pressure applications

American Muscle Transmission Temperature Gauge 1249 AU1249 2-1/16"

the positive stop PTFE seals are used

AR202-4203

Standard Main Jet #57 HO122-57 Product:1/4-32" Thread, .056" Hole Size (Pair) The Formula GT Wheel featureStandard Main Jet #571 4 32" Thread, . 056" Hole Size (Pair) HO122 57 122 57 These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres 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.