Edelbrock part #11073 Ford Flathead 4-barrel intake manifold for 1949-53 engines. This intake manifold allows the use of square-bore carbs such as the Edelbrock Performer Series or Thunder Series AVS 500. This is a reproduction of the vintage Edelbrock #452 two-piece manifold with a new carb adapter flange. This manifold offers a durable black power coated finish for long lasting protection and a distinctive look.