First off its a 92 350 5.7L TBI.... Ok well here is the problem, while driving down the road it sputter a little bit, not like a sputter u would get from a clogged fuel filter or bad plug, the RPMS actually go up! It only does it for like a sec, then stops, and does it pretty often, it only does it while driving over like 55 after the truck is warm, does not idle funny, or do it while driving slower speeds like in town, does not sputter leaving from a dead stop! also my MPG have dropped from 16-17 to ike 8-10. I took a look at the injectors, and there was a little drip along with the spray, and my EGR was out! SOOOO I figured it was due to that fact of too much gas or a bad EGR...NOPE, changed the EGR, and rebuilt the TBI! no change still have a drip and still sputters! all this started happening after I got the tranny rebuilt back in July, its the 700r4, and had a mild shift kit installed! I have no clue what it is....TOTALLY Crazy!! throwing me off!