not a hot boat but a friend has a few questions. bought the boat in havasu lives in salt lake about 4500 elev. boat wieghs 3200lbs dty 22 ft condure open bow. k&n filter 14x19 3 blade at 4400 rpms 41 mph. mercruiser 260 hp 4 barrell. what do you suggest to bring up rpms and speed. what prop would help any mods? any suggestions would be appreciated.