Thanks everyone for the great replies. I think I'm going to do what Eddie and Rookie suggested, I'm going to route the back lines into the exhaust, I like that idea of getting rid of the hot water rather than sending it forward. That was the answer I was looking for. Thank You Again. By the way is a 3/8 (-6) hose a good size?

-6 An hose 3/8npt at the intake boss, then dump overboard works great. You could even tee the two together and dump over through a single thru hull over the top of the drive.

Mine are a bit different but I push water from the crossover back to the back of the head and then it all comes out of the front of the head and hits the headers. My intake is totally dry as you can see. Once hitting the headers I have pressure reliefs on the other end of the water distribution manifold that dumps each over the side. Mine work quite well. You can see in the picture where they are tapped off the crossover and head back under the manifold to the back of the motor. I also tapped one side of this line for my water pressure gauge on the dash.[ATTACH=CONFIG]500904[/ATTACH]