09 z520 w/a Merc pro xs 250. Running a tempest plus 26P prop. Got up to 65mph at around 5800 rpms. Is that the right prop or is there a better prop out there for my boat? I know I should at least be running lower rpms and maybe a few more mph. Oh, and all 3 holes are plugged. Or I assume they are bc they have a rubber piece in the holes