1973 International Truck s sputtering

When I am driving my 1210 international truck and give it gas it starts to sputter like it isnt getting fuel if I let up on the gas it will kinda go away I have changed both fuel filters and sprayed carb cleaner on my edelbroc 4 barrel carb would it be the float in the carb or a fuel pump issue? It sometimes will die when I start it befor I get goin down the road like if I start it and go to the first stop sign then it might just die. I have the 392 v8