Finally an affordable high-performance race carburetor! PROFORM's new Race Series Carburetor is hand assembled in the U. S. utilizing the PROFORM High-Flow Carburetor Main Body, durable billet metering blocks, and a high performance billet throttle base plate. The PROFORM Race Series Carb includes: PROFORM Carburetor Main Body: High-Flow Main Body! Dyno-Proven Horsepower & Torque Gain! Adjustable, Screw-In Air Bleeds! High-Performance Down-Leg Boosters! (except 650 CFM) Maximum Air Flow. No Air Horn, Choke Tower, or Choke Control! High-Rate Air-Flow Section Design!PROFORM Billet Throttle Base Plates: Adjustable Secondary Air Flow Cam Bracket! Solid Billet Construction! Hand-assembled in the U. S. ! Timed & Full Vacuum Tubes for Accessories & Tuning! Welded Throttle Shaft! Button Torx Head Throttle Plate Screws! Power Valve Blow Out Protection! Slip Link Mechanical Secondary Linkage!PROFORM Billet Metering Blocks: Solid Billet Construction! Durable, No Warping or Porosity Problems! Changeable Idle Feed Restriction!Pit Stop USA offers Proform Race Series Carburetor - 850 CFM - Mechanical Secondary 67201 at low everyday prices. Be sure to check out all of our products from ProForm including ProForm 800+ CFM Gasoline Carbs.