I picked up some used Bassett OT headers and a T valve 2 months ago and the headers are currently at the chrome shop. Going tomorrow to pick up some lines and fittings. I'm in the process of trying to sketch out on paper how to plumb these things and I am going

I've searched old threads on this forum and others and every thread has different answers. My boat currently does not have a tstat and I am not sure if I need to run one. Also, I'm having trouble figuring out if I need one or two water dumps. What temp is the water coming out of the water dump(s)? Do I need some kind of pressure regulator that is set at a certain pressure inorder to avoid blowing head gaskets? How many valves do I need before the headers inorder to regulate water volume? Some say 1 (near the jet) and some say 2 (1 near the jet and another by the drivers seat) Any help would be greatly appreciated!