[tubman]

I had an extremely bad experience with a high volume oil pump. It was in a freshly rebuilt engine in my Corvette, but I believe that the problems are universal. It pegged the oil pressure gauge and blew so much oil into the engine that it compromised the valve guide seals. I learned the hard way that "Hi-Volume" oil pumps are NOT a solution for second rate rebuilds. Take it back apart and do it right. I think some others on here will also tell you that they take more power to turn and add extra heat into the engine. Again, do it right from the start.