Weird stumble

I have a 94 gt and it has a weird stumble. When I am accelerating from idle to about 3000 rpms it stumbles. It is almost like a fouled plug but they aren't. New plugs, wires, cap and rotor, new air filter, cleaned sensors receintly. It runs better since those things but it still stumbles. any ideas?
 
Not to scare you, but my car did that a few times before my stator (PIP sensor) in the distributor went bad. It only happened to me when I was at a fairly constant speed like 60mph. I would feel the car hicupp a bit like it missed spark for a split second and then it would be fine.

Are any of your spark plug wires touching each other? Sometimes if they are intertwined they can arch over to one another and cause multiple firings in one cylinder and cause a stumble.