Throttle Shaft 
Conversion Kit

Good for all PROFORM Race Series Carburators
For 4150/4160/4150HP Carburetors Up to 1-3/4" Bores
Features:
  • for 4150/4160/4150 HP Carburetors Up To 1 3/4-Inch Throttle Bores
  • Torx Head Throttle Plate Screws, Universal Lever and Slip Link Secondary Activation
  • PROFORM Parts Brand Product
  • Sold as One Kit
PART# 67243
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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.

  • 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.
Warning for part number #67243:
  • Product is legal only for off-highway use (except in CA or states that have adopted CA emission standards), racing use or for use on pre-emission-controlled motor vehicle/engines (pre-1966 domestic vehicles certified to federal standards and all pre-1968 foreign vehicles), per manufacturer's application guide.
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