A buddy bought an old boat. It is a 1966 Evinrude tri-hull with a chevy 350 (5.7L). It runs very hot. We think the cooling line are not hooked up properly. The lines get full of water, so its not the water pump. Hoping some one has an old boat like this who can get us a pic of the cooling lines or know haw they get hooked up. The old owner pulled the heads and got them redone.