Last summer I installed a full fresh water cooling system on my 1996 5.0 alpha, 50 hours on engine. Flushed the engine several thimes<br /> My problem is it will run hot on plane as soon as you slow down or stay under 2800 rpm it runs fine. I even changed the system to a half system to fix things,no help. <br /> Could it be there is not enough raw water flow from the alpha drive to cool things down.<br /> I am thinking of installing a engine driven raw water pump to increase flow. Do I feed this pump from the drive unit or through the hull.<br /> This way I will have two water inlets that will provide all the raw water I need<br /> I could use any help anyone may have <br /> Thanks Phill