I just bought a 2002 Deep Impact catamaran. I was told they only made 12 of these boats. Similar to the 26 american offshore but was told they used the Motion molds. It has a 496 h.o. and the Bravo X drive. Would like to hook up water pressure line but cant find a suitable port. The fella that had it prior to me put Dana headers on it and I'd also like to know how much increase in h.p. this gives these motors. Any knowledge would be greatly appreciated since all I'm used to is building 2.5 Mercs and running them on Allisons.