I lost a lobe on Pettis`s dyno years ago and it took out a few bearings and the oil pump............like said, it needs to be treated like a freshen and relpace what`s needed OR, buy a roller................. Good luck and I personally run Isky...........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....