I use a Milodon duel line setup and never have had a problem. I use a static pickup in the bottom of the 12 quart pan. I also use a blueprinted hi volume melling pump with the Milodon bottom plate and cover and filter adapter. I use the good original milodon gasket between the pump cover and oil filter adapter. I've always had instant oil pressure on startup, even after an oil and filter change. Dave