Holley 142-22 - Holley Emulsion Jets

These Holley replacement emulsion jets are designed for the infinite tunability of the metering systems on all Holley Ultra HP & Dominator HP Billet Metering Block Carburetors. Holley does not recommend changing emulsion Jets unless you are a competent carburetor tuner with the correct test equipment to record the changes. Sold 2/pkg.