Does anyone have information on how Chrysler camshaft specifications for lift, BDC, overlap, etc. is calculated or measured verses those from after market suppliers such as Isky, Crane, Stinger. A friend axed me this and I have no idea at all but he believes that these specs are figured differently. I told him that I will try to find out and figured this was by far the best place to do so. He believes that some camshafts are calculated with a .050 figure and others with zero. Thanks Roger Schaaf Calif [Non-text portions of this message have been removed]