I just wanted to post this for information purposes. A stock bottom end is designed to handle about 1000psi of cylinder pressure. Lets say your blower car makes 400rwhp, that number is more like 440-60 crank hp, that number is actually more like 500crank hp, due to the heat and friction it takes to operate the blower. This is power you never see on a dyno or anywhere else, but it is a reality of running a blower. Now a blower car produces 2.65psi of cylinder pressure per hp produced. Now take the 500hp x 2.65psi and that equals 1325psi of cylinder pressure on an engine that was designed to handle no more than 1000psi. It is a mathmatical certainty than no tune or no amount of safe tuning will reduce the amount of pressure that cylinder sees. You are exceeding the capabilities of the metallurigic make up of the stock components. I am not trying to scare anyone, just stating fact. Moral of the story, your running on borrowed time. I hope this helps some of you.
Adam
Adam