I have a 14 foot High Tide boat. It has a 1997 4 cylinder 40 hp Mercury with 13 pitch vengeance prop and a 4 inch Vance manual jackplate. At wide open throttle and optimum trim I’m only getting 37-39 mph. The jackplate is at it lowest setting because the boat wants to porpoise and will only allow me to trim up a very small amount or none at all if I raise the jackplate. The only gear in the boat is myself 190 lbs, 6 gallons of gas, and one battery. The problem that I’m having is there is just too much boat in the water it’s running too flat. The question I’m asking is if there is anything I can do to get the nose to fly so I can get more speed. Props? Motor Height?