Misfire once in a while

[smokymance]

i was driving down to school today and i noticed something weird. at first i thought it was the tranny making some noise...but then i realized that it wasnt. what happens is that when lets say im cruising at 40...every coulple of minutes...of stready throttle...just holding it down at one spot...it just chockes and the whole car shakes...its like a missfire or something but its just out of no where...it just does it every couple of minutes and it doesnt do it while accelerating or anything...what could it be? thanks in advance

 

[section525]

Mine does the same thing. It only happens at low rpms, right? I think its from my plug wires arching. I'd check all your wires and make sure they're still in good shape and not fused together.