As you go further back, you'll need to raise the motor up some. The water coming off the bottom of the boat rises, so you'll need the motor to be higher in order for the water to hit the lower unit at the same point. The prop is probably running deeper now than it was before.
But....before you start jacking 'er up.....you do have a water pressure gauge, right? Don't want to burn that yam up!
Thanks
@GotMyAlly I wasn't aware of the fact that the motor would be sitting lower now than it was before due to the fact that it's sitting further back. Good point
I have a water pressure gauge that I will be installing soon, hence the fact that I haven't played with engine height yet. I hope to have that installed sometime within the next week or so, and then I will be able to safely raise the outboard and monitor the pressure.
I know that I might ultimately have to change props, but I see no reason why a boat like this can't easily break the 60 MPH mark with a 150 HP outboard.