The engine in post 1107 above is one I built for my boat. It’s just a cruiser but in lake testing I’ve been 86 mph. On pump gas and on wastegates it makes ~800. I have enough turbo to make about 1800-2000, and if I could get E85 at the river I’d have no problem running it around the 1400hp level. That would solidly put my boat about 115 mph. Which is honestly way too damn fast on water, in a 21 foot boat.