Holley Pro-Series Adjustable Secondary Linkage Kit for Holley Double Pumper and HP Series Carburetors 29701 12 AN Female O-Ring Inlet

12 AN Female O-Ring Inlet / Outlet

High Output Motor

hex head for barring engine

Pitman Arm

They have a large runner cross-sectional area (3

Holley Pro-Series Adjustable Secondary Linkage Kit for Holley Double Pumper and HP Series Carburetors 29701 12 AN Female O-Ring InletFeaturing Stainless Steel construction and a lightweight yet rugged design, it provides a bulletproof method of adjusting secondaries on all Double Pumper, HP, and Ultra HP carburetors. It allows user to pick between 1: 1 or progressive secondary ratio. Kit provides infinite adjustment of secondary throttle blades for maximum horsepower output. Features: Choose between a 1: 1 and a progressive secondary ratio Tough Stainless Steel construction for