Black Plastic Air Cleaner Adapter 4BBL To 2BBL Carb Holley Rochester SBC BBC

Carbs with opening of 2 5/8". Black plastic air cleaner adapter. Black air cleaner adapter. Carburetor opening 2 5/8" to air cleaner opening of 5 1/8". Air Cleaner. Made from high temp plastic. Adapts 2 barrel carbs to 4 barrel air cleaners.