BW - With all due respect, this may not be a good idea.
While the Rochester B is not high on my list of carburetors, I have to say that many have problems with these because they attempt to mismatch parts. Malfunctions due to mismatched parts are certainly not the fault of the carburetor manufacturer.
Some 216 bases MAY interchange with 235 bodies, but most will NOT. There are several different port configurations from throttle body to bowl.
Jon.
