Description
This item is brand-new, factory sealed.
Holley Carburetor Standard Main Jet
- Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500
- 1/4-32 Thread
- Standard Main Jet
- Control fuel flow into the metering system
- Rated in flow capacity “cubic centimeters per minute”
- Fit type: Vehicle Specific
- Manufacturer: Holley
- Brand: Holley
- Model: Holley Carburetor Standard Main Jet
- Item Weight: 0.32 ounces
- Item model number: 122-71
- Is Discontinued By Manufacturer: No
- Exterior: Machined
- Manufacturer Part Number: 12271
- OEM Part Number: 122-71
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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