Dude, leave the 23P(I assume a fury). I got 66mph empty on my 2022 Sabre and fully loaded, two anglers and 33 gallons of fuel I still got 66. I have yet to break 5700 RPM’s and I have been told that the motor will gain more after 50 or so hours. My point is leave the boat alone until you use if for some time. Now 66 is ‘TIME’ running and getting the boat to sit on the pad. Once this happens you will go from about 63 on up. I feel that I should get get 68- 69 down the road.
A four blade will get you out of the hole faster, but not as fast on top end.