Easily optimize your flow rates with the new PROFORM modular 1in carb spacer kit! Each kit comes with one frame and 3 popular inserts: open, 4-hole, and tapered 4-hole. V arious engine combinations have various fuel and air distribution requirements for maximum performance. Lightweight heat-resistant phenolic. Made in the U.S.A. Sold As One Kit.
Product Details:

• Engine Carburetor Spacer Kit
• Trackside Tuning Kit Has 4-Hole, Open and Tapered Inserts
• 1 Inch Thick and Made from High-Quality Heat Resistant Phenolic Resin Material
• Black Finish
• Clamshell Packaged For Retail Display
• Sold As One Kit