Captains,
Lets not forget the new marine engines of today are all CRANKSHAFT rated horsepower and torque . The Chris Craft engines were all PROPSHAFT rated horsepower and torque . Most dyno operators will factor in a 10% loss thru the drive train . That new 6 liter GM marine version has peak torque above 4000 rpm which seems awful high for a big heavy cruiser . It sounds like uncharted waters .
Tim Toth , Sandusky , Oh