So I recently aquired a nice and unmolested BBC Gen IV block. I'm thinking about building this over time and eventually installing it in my jet boat or keeping it as a spare until my current motor finally dies. Luckily, I'm in a position that my current motor is running and I won't find myself with a motorless boat in my driveway for an extended period of time. I'm pretty sure that I'd like to do the 468 thing and being in the neighborhood of like 500HP. What kind of number should I be looking at as far as torque goes? How important is torque in a jet boat? I'm currently running an "A" impeller and I will probably be sticking with that so the motor won't be seeing any high RPM's. Mainly, as my son gets older, the boat will probably be doing alot of the ski, tube and wake board pulling thing. However, when it's just me and some friends I'll probably get on it a bit harder.