Nothing. It is called a Carter Superquad. They were available as an aftermarket performance carburetor and never installed on anything. They were made from about 1980-1988. There are four models. 9800S, 9801S, 9010S and 9811S. The 9800 and 01 is the GM application and the 9810 and 11 is the Chrysler. They are good carburetors. And if David touched that one, it is a damn goodun.
