edelbrock acc pump adjustment?

im thinking a richer pump shot will take care of it, cause like i said its a really small stumble and it mainly happens when its cold but when its fully warmed up and you hit the gas a little too fast it has a slight hesitation. so im hoping increasing the pump shot will eliminate it? so if its the top hole, tommarrow i will put the accelerator pump linkage in the top hole, and i'll report back, thanks guys.