I have been going round and round about big inch na. motor vs. supercharged lsx motor. The numbers on the ZR1 look so good it is hard to ignore. 638 Hp, 600 ft lbs touque, 500 lbs weight. Idles nice and low, but turns 6600 rpm. Boat is a Stoker 224. I notice such a difference in the handling of the boat when a run half of the 50 gallons of gas, that pulling 300 lbs out of the arse would seem like a great idea. First, what does a tall deck bbc weigh? Second, what would it take to make a ZR1 marinized? The boat runs right at 80 with a 496 Mag. with Dana exhaust. How much does marinizing a motor add to the weight?