Menu
800-227-2242
My Garage Add a vehicle

Recent vehicles

Vehicles you shop for show up here. Pick one in the Shop By Vehicle bar below.

Cart
Reset
Main Jet Extension

Holley Main Jet Extension

Mfg Part #
122-5000
NP#
HOL122-5000
Brand
Holley

Universal fit: no vehicle restriction.

  • Improved Design
  • 2 Per Package
$30.99 CAD Ships Monday, October 5
Availability: This item is available at a partner warehouse.
Ships Monday, October 5
Universal Fitment
Book installation at our Service Centre

Does this fit your vehicle?

Description

An improved jet extension design that actually screws into the metering block. The main metering jet then threads into the end of the extension. The installation effectively moves the fuel entry point for the main jet out into the fuel bowl. In this location it cannot be uncovered by fuel, causing a lean condition, during periods of hard acceleration or braking. 2/Pkg.

Warranty: Manufacturer's Limited 90 Day Warranty

Sign up for sales, arrivals, vehicle specific content and more.