This Holley Pro Series Adjustable Linkage Kit Features stainless steel construction and a lightweight yet rugged design, while providing a bulletproof method of adjusting secondaries on all double pumper, HP and ultra HP carburetors. It allows the user to pick between 1:1 or progressive infinite adjustment of secondary throttle blades for maximum horsepower output.
Key Features and Benefits:Makes adjusting mechanical secondaries a snap! Choose between 1:1 and a progressive secondaries ratioTough stainless steel construction for longevity, durability and controlSimple installationDetailed instructions included Perfect for circle track and drag racingCompact design won't interfere with throttle linkageIncludes all necessary hardware