measuring at .040-.050 lift is moreaccurate as cam lobe has passed thru the soft cushioning opening/closing ramps built in for longer cam/valve train life. not hardley any flow occuring at these slow opening/closing lifts. race cams are shorter opening ramps acclerating the valve to higher lifts quicker where more flow occurs and holding it open at full lift longer where max flow occurs for best cyl filling. finding accurate tdc is absolutley necessary degreeing. also u should know exact cam lift when setting up dial indicator. to insure indicator setup accurate u should roll engine thru and check indicated cam lift. pointer angle off will skew numbers several degrees. indicator should be set up very close to valve stem angle. measured cam lift should be within just thousands max of advertised lift less lash clereance. .385 cam, .007 valve clereance, nets .378 net lift, i'm looking for measured lift within .005 of that number, less better. i degree all cams with running valve lash, as that's the way they operate real world. i'm not seeing what lift u checked u checked duration at, ur numbers add up, but that duration looks high.
Last edited by gaz; 04-10-2019 at 08:01 AM.