It's really early in the discovery process at this point, but my customer has had an issue with his cam/lifter situation. It may end up being like the "chicken and the egg"..... As to which was the cause of the problem.......but I was pretty surprised to learn his lifters didn't have any way to pressure feed the bushings.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads