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well we changed out the relief spring under the intake to NOS and also added a 1/4 washer this helped with the initial oil pressure but about the same running down the road, think we need to rebuild another engine--not sure a new op would help but at the cost of a gasket we might try. I do have a few used pumps ,including some 80 lb pumps, if I did this should we block off the reief spring under the intake or what?