The Speedmaster PCE156.1001.01 is a polished dual-carburetor adapter plate designed to mount two 4150-flange carburetors onto 6-71 and 8-71 supercharger blower applications. The polished finish adds a clean, show-quality appearance under the hood while providing a proper mating surface between your blower and carburetors.
Engineered specifically for 6-71 and 8-71 style roots-type blowers, this adapter plate simplifies dual-carb blower setups and is ideal for street performance and race builds requiring a reliable, bolt-on carburetor mounting solution with a Holley 4150-style footprint.