I have a 1976 dodge b-200 van with a 360,2 barrel,auto,a/c. It surges bad when I'm going up even a slight incline. It acts like its going to die. It runs smoothly at all other times. I have replaced all of the vacuum hoses and replaced the air cleaner,sprayed the carb with cleaner,everything that I know of. Please help. Thank you.

If it does the on an incline, check the fuel level in the bowl and adjust the float. Sounds like the level is too low.