On wiesco pistons on 9:1 pistons and eagle rods stock sleeves was lookin for about 400whp what psi range would be around. This would be on 93 pump

 

Anybody could just say you will have to run say 20psi to get 400hp. But, imo you will need to tune/dyno your car and find it out for sure. Your tune can determine how boost you need to achieve them numbers. I have netted over 70 hp from chrome to neptune with same boost. Tuner def. had something to do with it. But to be sure I would tune/dyno for a safe 400hp.