Larry, Thanks for the input. I am sure I could get alot more top end with a different prop. I am not looking for anymore speed. The boat is performing exactly like I was hoping. This is a huge 21 foot boat that jumps up on plane faster than my 13' Blackjack. I didn't think that was possible. Every boat performs different. I'm sure there are 21' boats out there that will run close to 100. My brother has a 29' Jupiter w/ twin 300 Mercs that runs about 60 MPH. Thats about the same speed your getting with 4 times the horse power but I bet that Jupiter rides alot better. My only point is, we are not comparing the same boat. I think alot of people have enjoyed this thread. I hope it not getting ready to go the wrong way.