77 GMC carb problems

[Guerrero707]

I ve been having some problems with my truck, i haven't moved it in about 2 months but sometimes when i start it, the choke warms up so i give it a little gas and a few seconds later it shuts off and i cant start it back up. also sometimes if i give it gas too fast it shuts off and sometimes its fine it wont shut off no matter how fast you press the accelerator. please someone help i need a solution to whats wrong with it.