Proform Carburetor Throttle Shaft Kit 67243;

Upgrade your PROFORM or Holley carburetors (up to 1 3/4" throttle bores) to achieve higher air flow by reducing the size of the throttle shaft. Each kit includes button head (Torx) throttle plate screws, universal lever, and slip link secondary activation system. The High-Flow kit includes stainless steel button head screws.