CFM-Tech Ported

CFM-Tech specially ports the PS109 spacer for huge airflow and power gains for those using a Rochester 2 barrel carburetor on Chevy / Mercruiser 2 barrel intake manifolds.

CFM-Tech Ported 1" Tall Phenolic Resin Adapter for Holley 2bbl on Q-Jet (spreadbore) Bolt Pattern Intake Manifold. Big power increase when used on an aftermarket aluminum intake such as Edelbrock Performer!!!

CFM-Tech Ported1" Tall Phenolic Adapter for Holley 4412 2bbl to 4 barrel Outside Bolt Pattern - ie: Most 4 Barrel Aftermarket Aluminum Intake Manifolds. Big Power !