1 Inch Super Sucker Style Carburetor Spacer Stainless Hardware Holley 4150 4160

Rebel Performance Carburetor Spacers

Common knowledge and experience tell us that open spacers help top-end power, and 4-hole spacers help midrange power. Now, the best of both worlds have been merged into one with these  carburetor spacers. Compromises are minimized, so it's no longer necessary to sacrifice one portion of the power band to increase another. The unique transitionary blend from the 4-hole ports at the base of the carburetor to the open plenum of the intake manifold has provided tangible gains in both midrange and high-rpm power.