crazy backfire and vibration while accelerating

[jezefink]

ran 112 octane...18 psi stock injetors...half way down the track the car started breaking up...loud backfires out of the exaust constantly when giving gas...vibrates like crazy when giving gas...possible blown spark plug,o2 sensor? anyone have ideas?

 

[GSGoinFast]

Check wires. i wasnt racing mine but it would missfire and jerk like crazy just driving normal. just replaced the wires and plugs(cuz the backfires destroyed the one) and it ran fine.

 

[leet]

Try turning your boost down to like 13 and see if that helps any.