Car doesn't want to move

OK, this is a car that I just bought. It might not be transmission problems after all. When I backed it off the trailer, it seemed like only the right rear wheel was pulling when I put it in drive to put it in the garage. It is hard to start and wants to stumble and stall right off idle. Can't even touch the accelerator until it is well warmed up. I have to use a spray of starter fluid to start it. I locked the choke open to be able to move it. The previous owner put a brand new carb (2bbl) on it. Once it warms up, if I ease it through the flat spot when running in neutral, the engine will rev up fine. It's almsot like there is no accelerator pump in this carburetor. I'm starting to think there is dirt in the carb, what do you guys think?
DickJ