hesitation on acceleration

Hello,
I have a 1994 roadmaster wagon. What would cause a hesitation on acceleration. It seems I need to really push on my accelerator pedal and wait a second or two for my car to accelerate. This is kind of dangerous since I don't exactly know just how fast it will move when it does.
thanks

Yeah, i hear you on that. Im am actually having the same problem im my roadmaster right now......... I checked the tps, and its fine, I dont know what should be done, as few people seem to experiance this problem....(like the buzzing in regal radio's.).... good cars, But they have there downfalls...
Bill