Wilson Manifolds Tapered Carburetor Spacer - Holley 4150 Series - 1" 4-Hole Tapered Air & Fuel Delivery Boost Controller ZEP coats all engine parts

ZEP coats all engine parts and won't rub

Short block

1975-1989 Excalibur Phaeton

Switch To Low RPMs At The Starting Line

2017-2017 BMW M240i

Wilson Manifolds Tapered Carburetor Spacer - Holley 4150 Series - 1" 4-Hole Tapered Air & Fuel Delivery Boost Controller ZEP coats all engine partsWilson Manifolds' Carburetor Spacers have been used by more pole, race, and championship winning teams than any other brand in the world. Our Spacers have been developed through years of testing with the top race teams in nearly all forms of motorsports. Wilson Manifolds offers the largest selection of spacer designs and heights in the industry. This assures that we have a spacer design for virtually all classes of racing that will provide optimum