have a 82 gmc 2500 4x4 with 350(carbed) (use to be a diesel but swapped before i got it) it will start and run ok for a while but when get it on the road it starts choking out and eventually dies (at varring times) some times will start back but usually have to let set before will restart. just got truck and trying to get running before weather gets to bad but already cold and dont have alot of time to tinker so trying to get helpfinding the right startingpoint lol! fuel, timing, or what??????? dont know alot of specs onengineanyone got any ideas??? short on money too lol holiday season lol