I don't agree. If the tune up is good, and no detonation, cast pistons will be fine. If into detonation either type piston will fail. In my first turbo motor I had forged pistons and broke some (detonation) 11-12 lbs boost. My recent nitrous motors I use mostly stock cast pistons. Have run as high as 225 hp shot fogger on a 170 slant. Mostly good, sometimes not so good. Proper tune up is the key.
