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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.
Features:
Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500
Sizes from 40-110
1/4-32 Thread
.069" Jet size
Standard Main Jet
Jet Hole sizes provided for reference only . All Holley jets are sized by actual flow and may vary from sizes above.
Standard Main Jet, 1/4-32 Thread, .069" Jet size
Made in the USA!
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Manufacturer
Holley products have been the undisputed leader in fuel systems for over 100 years. Holley carburetors power every NASCAR Sprint Cup team and every NHRA Pro–Stock champion. Holley's products include performance fuel pumps, fuel injection, intake manifolds, cylinder heads & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies, Hooker Headers, Flowtech Headers, NOS, Weiand, or Earl's, Holley products can give you the edge you need over the competition.
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