What Intercooler??

If it's standard, then around 12psi this time of year.

Pace half-width or similar, would take around 18psi.

GRS or similar full-width would take alot more.

Then you start getting into risky ground until you lower the compression ratio. The pistons themselves are good. Mine went to well over 250bhp and the rods can go to around 230bhp, maybe a little more, depending on condition, although ARP rod bolts are a very good idea.