Ok, information I received said, Brad Penn 20w50
oil has Phosphorus content of 1340-1400 ppm and
zinc 1500 ppm. and it's the same stuff that used to come in Kendall cans. And what I interpret is that conventional oils cling better to parts than
synthetic oils. I should be past the breakin period so what do I need for the long run to maintain a solid lifter cam?