I was running 6psi on a Mopar Performance remanufactured short block. That had hyperutectec pistons 9.5 to 1 comp ratio with Edelbrock heads. I had at least 36,000 miles on those pistons.
Im doing a new build with 2618 forged pistons. 2618 is the ideal material for boost and/or N20.
I have Ray Barton O-ring my heads and cut receiver grooves in the block. I use SCE copper head gaskets on any LA blower engine.
O-ringing is described in detail in your Supercharging book.
