The new 7.3 fits in the same space as a 5.0 liter. Any guesses as to the results if one was put in a 20' - 25'? (We'll suspend disbelief for a bit and assume required parts could be found or fabricated.) 13" props can have 21" pitch. Spin a 21 pitch to 5,000 RPM, assume 15% slip, and you've still got 84 MPH. Or would the flat hull suck in so tight you'd be lucky to get 45?