Yes Carbking will be able to id it. That is similar to a Carter YF I had that was used on Chevy 194 and 230 pickups. Since it was a manual choke, I went through it and found it to be in decent shape. Comparing it to the YF2100s, the air passages, jets, metering rod, etc were fairly close. It didn't do badly on the 235. In fact it ran very well, but I prefer an auto choke. The one I had was somewhat different however. The throttle body was cast iron and didn't have the vacuum port. I think the number was YF4145S, and I think it was for a 1965-ish Chevy pickup.
Your problem might also be a cracked/ruptured diaphragm. If the diaphragm is compromised, it wont seal, will allow fuel to leak from the float bowl into the vacuum chamber below it and if that happens it will be sucked right into the manifold and also will dribble and leak along the area where the float bowl connects to the throttle body. It will definitely pool in the manifold and will run rich. A couple or three years ago I showed how to make a little gizmo out of a flat piece of wood and some 320 wet/dry sandpaper that will enable you to make the diaphragm bonnet nice and flat. They can be warped by ham fisted repair people.
