I have a 235 with a single Carter, What sort of symptoms would result in carburetor choke not being adjusted properly?

I have been having problems with my motor running properly at high RPM's it cuts out and when I shift to a higher gear the engine losses power upon acceleration. Yesterday it was about 100 degrees outside and I fired up the engine and the problem wasn’t noticeable until after it warmed up a little (about a minute or less) and then it was back again. If its hot out side it seems to run way better until the engine warms up. If its cold out side the problem is always there.