SB

iTrader: (1)

I believe You have it backwards.

DrFeelgood

Low boost in an automotive application, you could probably do ok with hypereutectics. They don't tolerate detonation at all so boost must be kept low or the tune must be kept very conservative (or carb jetting very rich). The load in a marine application is more than automotive and the margin of safety will be less.

Zole

Profesor corect me when im wrong...so it is the other way around...forged expande more then cast pistons.Yes?

Zole

So keep my boost low(6psi) and rich fuel and i should be fine.Add advance around 35 dg and keep my fingers crosed