Holley Standard Main Jet #65

Precision Fuel Metering

These metering orifices control fuel flow into the carburetor metering system. Rated in flow capacity "cubic centimeters per minute," they are changeable for tuning purposes. The shape of the entry, exit, and size determines flow characteristics.

Quality Manufacturing

All Holley main jets are flow tested and stamped with the correct number for accurate identification. Manufactured from brass to high tolerances for consistency, these jets feature 1/4-32 unified fine thread for easy installation and removal.

Technical Specifications

Jet Size: 65
Hole Size: 0.065"
Thread: 1/4-32 UNF
Material: Brass
Quantity: Sold as pair (2 pieces)

Compatibility

Fits all Holley carburetor models 2010, 2300, 4010, 4011, 4150, 4160 & 4500. Note: Jet hole sizes are provided for reference only. All Holley jets are sized by actual flow and may vary from nominal sizes.

Important Notes

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles as it does not affect vehicle emissions.