Must use the included plastic adapter to fit 3-1/16" Air Cleaner. It will only fit this stule of carburetor. Not satisfied?.
2 Barrel Carburetor Air Cleaner Set 2BBL 2-BBL 3-1/16" & 5-1/8" Neck Diameter RD
2 Barrel Carburetor Air Cleaner Set 2BBL 2-BBL 2-5/8" Neck Diameter Holley RED
Air Cleaner Set 2-Barrel Carburetor 3-1/16 Neck Diameter Rochester 2BBL Jet Carb
Air Cleaner Set 2-Barrel Carburetor 2-5/8" Neck Diameter Holley Rochester 2BBL
