Holley Standard Main Jet #78 HO122-78 Product:1/4-32" Thread, .0870" Hole Size (Pair) Part Number: AF30-3006

Part Number: AF30-3006

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Holley Standard Main Jet #78 HO122-78 Product:1/4-32" Thread, .0870" Hole Size (Pair) Part Number: AF30-3006Standard Main Jet #781 4 32" Thread, . 0870" Hole Size (Pair) Brand: HOLLEY Part Number: HO122 78 Description: 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.