Fastnuf, if you think WJ is making less than 1300HP, and going in the 6's you are lost! This motor has a ton of mid and upper RPMs, and holds very little cyl pressure under 3000RPMs. It is all in how you MAKE the power and WHERE you MAKE the power. In a flat bottom this motor rocks, but in a bigger boat it would not get on plane, cause it makes HORSEPOWER, not TORQUE! By the way the cam is supposed to be a WJ grind (I doubt it) and with 1.8 rockers it has .904" lift (ten runs on a set of springs) The post that talks about 750 HP from most blown motors is RIGHT ON, because the internal parts, and the blower size, along with the motor life vs. power output are the overpowering factors in a reliable 'play' motor. That 750 HP blower motor will make at least 800 LBs of torque over more than 3000 RPMs, and that will move the "load" and pull a boat up to a 'nice' top speed. A 750 CU IN motor will make the torque too, but a smaller blower motor will do it for less money. smile_sp