I have a 2 seater 1972 11 1/2 Cobra/baja boat with a 1972 Evinrude 50 hp short shaft motor. Heads milled 180psi, boyenson reed values I am running a 12 3/4 x 23p stainless Omc sst prop cupped. I am only turning it 5600 at 43-44 mph. I want to run a 23p prop 6000 rpm. What brand/model prop12 3/4 23p would allow me to reach the 6000 rpm. Motor is already set in the highest tilt position. It is 13 spline. Who makes a prop design that would solve this.
Thanks