That boost level is gonna take E85/Water-Meth inj./Intercooler, one of those 3, 7-8psi is pushing it w/o any of those. There's a big difference in 300 & 350hp, boost can get You there sure enough, but the piston that lives @7psi may not @12psi for sure. You can look at what the PowerNation mill did, but it ain't a cheapo build, so what are You in for$$$$?
