ya, i think from my readings, that I will have to run the turbos at 8 or 9 psi cause my block will aparently split in half at around 500HP. That being said, I think a kit such as this will be a waste of my money considering I am not trying to wrench out as many HP as I can. I bet its expensive too. I already have about $1200 in fuel system upgrades picked out. So I think until I get a stronger block, I'll stay away from stand-alones.