Re: How fast should it go?
Well Shawn, there are many equations to help determine vessel's top speed.
Prop: pitch, width,
Engine: height, HAP(horsepower at prop), carburetor performance
Vessel: hull shape, length, width, bottom surface, weight including passenger/s, drag, boyency.
Water: surface texture(smooth, choppy), wind, water temperature, air temperature, sea level...and others I am sure I have missed.
There are many factors that can contribute to the WOT top speed which I do not have the resourse to define. Borrow a hand held GPS or mount a speedo and !!!go open her up!!!!
Nipper