2150 Venturi Sizes
Most Motorcraft 2 barrel will have the venturi size stamped on the side of the carburetor. In the example below it is 1.21, which is the size as illustrated.
- 1.08 inches: This is one of the more standard sizes, often found on 302 cubic inch engines. It corresponds to a flow of approximately 287 CFM.
- 1.21 inches: This size is less common than the 1.08-inch venturi and is usually found on larger engines, translating to a flow of about 351 CFM.
- 1.23 inches: Another variant used on some models, corresponding to a slightly higher CFM than the 1.21-inch version.
HOW TO MEASURE THE VENTURI SIZE:
