my 91 chevy caprice classic 5.0....wont start
my 91 chevy caprice classic 5.0... wont start.its getting fuel,spark, it been rebulid plus ,new distri cap,igni module,timing chain,cam timing gear,igni coil, rotor button,..timing marks aligned....its backfires in the intake,smokes from tbi.help its driving me insane.