performance on my 20 footer

[Roland Rodriguez]

I have a redone 20 footer, she looks and rides great. I purchased it with a 1990 Johnson 225 but was disapointed with the 45mph top end. I'm running a 22 pitch prop and playing with the engine height with the help of my jack plate. My 225 has about 100 lbs in each hole. I'm considering repowering but can use any and all comments.