i bought a 1974 tahiti tiger with a 454 chevy and a jc berkley pump, im new to jet boats, i dont know what i should do to take care of the pump? dose it hurt the pump to run it out of water? are tahiti's bad boats? im think of building a 496 bbc what will brake with 550-600 hose power? i know the pump is good to 400hp but what about the boat hole is it worth my money to beef the pump up or is the hole to weak, it has 1/4 stringers. thanks for any advise you have.