My setup is a Berkeley 12jg and a mild olds 455. I have two gauges added to the manifold to see the pressure, wot is maybe 5psi? I bought this boat recently and see no valves or restrictions of any kind. Water from pump tees to logs, then to engine, and out to snails. My temps seem to be from 120-130 when running and 150 or so when I stop. Do you think I am ok? Thanks.