This Moroso carburetor jet extension kit is made for Holley 2-barrel and 4-barrel carburetors and ships as a set of three jet extensions. It lengthens the effective reach of jets to assist with tuning or rebuild tasks that require additional jet engagement. The kit is intended for direct use with compatible Holley carburetors when extended jet reach is needed.
Moroso Carburetor Jet Extension Kit - Holley 2BBL/4BBL Carburetors - Set of 3