HOLLEY STANDARD MAIN JET ASSORTMENT KIT
HLY36-181
Carburetor Jet Kit, Numbers 64-99, Plastic Case, Brass, Holley Carburetors, Kit
hly36-181
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.

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