Re: 40hp on a 14ft
I've got 40 HP on a 14' Alumacraft. Gets along great. Pull tubes and ski off it, too. We use it for small-water fishing, because the Scarab ain't exactly built for that.
We pull up crabs/fish, tube the kids around, and I pull my wife on skis now and then, but she weighs 100 lbs soaking wet.
Still, we zip around in it.