Thanks for the input. Its a new build, Going to shift at 6200-6400. Using Clevite full groove MS-1277HG mains 527HND rod bearings.Coated cam bearings, they were on the tight side.I am using comp lifters drilled for pushrod and pin oiling with solid pushrods, could I be loosing to much through the lifters. Should I pull the pan and take a look around.