In the Tech Tips part of this section (top part of the section), you'll find a two part report I did a few years ago. Hopefully that will help things with the Rochester. I listed a rebuilt Carter YF today in the Swap Meet section. It is the YF788SA model (designed for the 1950-52 235 as I recall. Not a show quality carburetor in any imaginable way...more of a "user" but I expect it will be okay and it does have manual choke and throttle (no mounting hardware but you might be able to adapt a Rochester cable mount to it). Hope it is helpful. Given what Carter YF models for the 235 with a manual choke are selling for, this one is definitely affordable. YF2100s are really hard to find and people have pretty well priced them out of reach. Sadly.
I would avoid any of the Chinese made carburetors. No, the "rebuild mills" are just combining junk into something that might or might not work. More today than ever before I would say. Good luck.
