[Oldsguy]

Pauly that looks like the Rochester 4GC carb, they are a square bore carb and very similar to the one on my son's '64 394 engine that we rebuilt. Listen to what MickeyD says, he's right. I recommend that you find a nice big pan, like a used square cookie pan, preferably an inch deep or more to disassemble the carb on. I scored about ten parts bins from a manufacturing place that are 24" by 18" and 2" deep made of some practically impervious material that looks like bakelite of some sort. Very good for that kind of job. If you can get by with it, do the job in the kitchen. usually they are cleaner and have better light and less junk on the floor. But watch out for the woman of the house!!!! Hey good luck on that, I think if you rebuild it you should be able to fix your leak, I agree with MickeyD that is most likely the gasket he described.