July 16, 2014

SO my 97 chev 350 vortec has been acting up lately. Only under load. If you stomp on it, it sputters and sounds like its backfiring. I changed the distributor about 5ooo miles ago and it ran fine. Did the normal tune up then. Now all of a sudden it has this issue and I cant put my hand on what it could be. Any ideas out there.