20' center console and 90hp evinrude. What will cruising speed be?

[FishStretcher]

Ditto on Bushwacker and Fr. Frank. They talked me though my setup. A 100 HP 4 stroke with lots of attention paid to prop type and motor height. Even with a 4 stroke kicker and 4 stroke main on the transom, (410-410 lb total?) I can about touch 34MPH, and with a special foil, plane below 14 MPH, 12 MPH on a good day. You won't need the foil if you have a light 2 stroke back there.

I moved batteries and fuel tank forward for better trim, too.