Do you no what size impeller is in it? Does it have a shoe and rideplate? What kind of HP are you planning on starting with?
Impeller size, loader ( the grate in the intake that directs water to the impeller), and shoe (cut and depth) are probably the main things
that
might need to be different.
Just because it had a blower, doesn't necesarilly mean it had a lot of power. Maybe they just built the motor and did nothing with the pump. Who knows.
Figure out what parts are in the pump and about how much hp at what RPM you're gonna have, and go from there.
Once you get that info, someone here can give you an idea of a good baseline start. From there, you can start trying different things.
Nice boat. It looks like a good project.
