MENU

Overview

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. Click on Catalog Product Page for complete listing of jets and sizes.

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.

Specs

BrandHolley
Jet Size.0685 inch
Product TypeStandard Main Jet
Part Number122-68

Tech Resources

NOT FOR USE WITH CARBURETORS ORIGINALY DESIGNED FOR ALCOHOL
Also Bought

    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.

     X  Holleydays