When asking my mechanic about boosting, he expressed concern with anything more than 6psi with the stock internals/CR.
A swap of the rods and pistons, as someone else mentioned, was his biggest suggestion.
But then I see guys running like 14-20psi on the stock block and they're making over double the power, shit @
lexusb3 is making triple the stock power at the wheels and nothing has gone kaboom yet. I'm hoping these engines prove to hold strong even at 10+psi of boost