I was told Tomco went out of business. If TMC is truly Tomco, avoid them like the plague. I have 2 Tomco reman Carters, boht supposedly for a 235 Chevrolet w/manual choke. Turned out one was actually a FORD (!!!) YF, which is jetted way too rich for use on a Chevy.
Personally, I would suggest combing the local salvage yards, find an original carb, and rebuild it yourself. That's what i ended up doing, using IH sourced Holleys that I rebuilt and matched up myself, couldn't be happier with the results.