Wilson Manifolds, induction systems leader for championship race teams around the world, offers high tech carburetor spacers that can actually add up to as much as 37 horsepower. Wilson Manifolds has spent more than 30 years designing a spacer that delivers more horsepower and improves throttle response and airflow throughout the RPM range. Computer-generated, variable-radius, taper design improves the airflow through the carburetor as well as the air/fuel distribution into the manifold. Part throttle is improved by careful redirection of airflow caused by the angled throttle blades. Velocity is reduced as throttle increases thus promoting a smooth transition to full throttle and better distribution to each runner. Flow at full throttle is increased by as much as 110 CFM.

Each spacer starts with precision-machined billet aluminum, hardcoated with a mil-spec material impervious to corrosion and scratch resistant. This lightweight spacer is available in 1-inch to 2-inch heights in 1/4-inch increments for 4150-style carburetors running gas or alcohol. Wilson Spacers are designed for oval or drag racing as well as street, marine or towing applications. Wilson Manifolds is a manufacturer of high performance and professional racing intake manifolds, carburetor spacers, shear plates, nitrous systems and accessories.