boat is new to us so we have no info on this 2005 party cruiser,i havnt had it wide open since I don't know what rpms is supposed to run at , currently im running at 11 mph at 4100 rpms when cruising, not even sure we have correct prop since previous owner was a complete bonehead ! 115 merc efi 4 stroke.... btw WOT stands for wide open throttle, thanks in advance