Engine Trouble?

Ok Here's my problem, Every once in a while when I'm accelerating and I approach usually like 25-30 MPH then engine stops for like a split second where it will not accelerate then it kicks back in and accelerates. Does anyone know what is causing this? My Car is a 1990 Cavalier I4

Thanks in Advanced
Brad

Could be the tranny slipping.Maybe a good flush would do some good.But only do a flush if your tranny isnt that old,and you baby it. (past 80,000 miles).Because as your tranny gets old,debris gathers up and actually helps the transmission.So removing this "Sludge" would be doing more harm than good.