What kinda prop u running?

[T-Bone]

Not sure what diameter your current prop is but i tried a 15x17 Mercury Mirage Plus and my WOT RPM's stayed the same at 5100 and my speed dropped from 50 to 43, my original prop is a 14x20 suzuki prop on a 2 stroke EFI 150 Suzuki. The hole shot was greatly improved but no top end. I am going to try a 14 x18, but gotta figure out which Powertech 3 blade to go with, there are so many to choose from. Good luck in your search.