50 trim in - lot's of smoke from exhaust

[Shane@DBPerformance]

A stock 7-bolt will handle well over 18psi and 150-200whp more than you were probably making. Your motor didn't break because it was making too much power, something went wrong with it because of tuning or install or just bad luck. The reason to not build a 2G 7-bolt is because of the crankwalk, and that is a major problem which shouldn't be ignored. Putting aftermarket rod and pistons in it will not fix the crankwalk problem.