These carburetor spacers are the most effective carburetor spacers ever developed. Adds up to 47 HP naturally aspirated, and 500 HP with nitrous oxide. These carb spacers also properly distribute the air/fuel mixture to the manifold. Improvements in the throttle response, drive-ability, top end horsepower and torque are common place when using them.
Includes spacer, gaskets, studs, nuts and washers