Carburetor Spacer 4500 / 1.00" Tapered Lightweight (2.150" Bore) square specifically developed for severe duty

specifically developed for severe duty and high boost applications

Other clamps may not seal correctly

The engine builder spacer kit includes all nine open spacers (4150) in 1/8" increments and is a must have for any dyno room and for track tuning

You may choose either annular or 90° nozzles

Carburetor Spacer 4500 / 1.00" Tapered Lightweight (2.150" Bore) square specifically developed for severe duty2. 150" Bore Wilson Manifolds Tapered Spacers feature a computer generated variable radius taper design that maximizes the airflow through the carburetor and enhances air fuel distribution for more horsepower. Part throttle performance and distribution are improved by redirecting the flow pattern created by the partially open throttle blades and gradually reducing the velocity of the air fuel mixture entering the plenum to allow for a smoother