SWIRL-TORQUE CARBURETOR SPACERSEasy, inexpensive way to get MORE TORQUE and MORE POWER from your engine!Improves quality of air/fuel mixture to optimize combustion and torque outputEnsures smooth transition of fuel from carburetor to intake manifold to increase flow for better performance Looking to maximize torque and power? Then you've got to maximize combustion in the chambers. The easy way is to improve the quality of the air/fuel mixture. Swirl-Torque Carburetor Spacers give your engine the best, most efficient air/fuel mix possible with a carburetor spacer. Dynamometer tests prove that they make your engine run cleaner and leaner for increased power and improved fuel economy.