The most popular street carburetor in the hot rod world is probably the 600-cfm Holley vacuum secondary carburetor, otherwise known as the 0-1850. They are popular for their wide range of application ...
The easy way to tell a 2100 from a 2150 is the rear edge of the base of the carb. Supposedly, the 2100s have a rounded rear edge like this. And a 2150 will have a flat rear edge of the base of the ...