My Buddy just got an 85 s10 blazer and on the way home it made a loud *** bang and shot flames out the tail pipe followed by a pyrotechnics show of sparks! We lost power instantly and it made a sound like the tail pipe was dragging on the ground but it wasnt. I was thinking fuel pump or a timing ishue. Chain or if im lucky just a distributor wire. Any ideas? SOB wont start now. Had to tow it home with nothin but a small pickup and 1 tie down XD