Re: Mercruiser MPI ?
My Mercury 350MAG MPI Horizon has what is called a "Cool Fuel" module....it's an aluminum housing the fuel line goes into that has a filter and the fuel pump inside. There's a T in the raw water line between the seawater pump and the heat exchanger and seawater is pumped through the module to "cool" the fuel (and maybe the pump too). Before I put the MP engine in I had a carbed engine and it just had a standalone electric fuel pump. So all you should need is the spply line from the tank pickup.......
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