Darryl When you broke the motor in, Did you remove the inner valve springs for the break in period? How big a cam is in this motor? I used EOS from GM for breaking in motors. What delo 400?
oil breakin or supplement? What block are you using? What rocker arm kit are you using. You checked the pushrods for clearance through the intake at both ends. Couple of pictures may help. Crower may have a bad set of cams or lifters. I would call and *****. Go to the search in CC and look for cam problems, you may find something there or go to the FE forum and ask them guys. This may have happen before. Thats Hyper lube? What breakin
oil are you using? Cut the
oil filter apart and check for any metal pieces. You maynot be getting oil splash on the cam lobes. Are you running a full windage tray? Rick Lake