Cam wiped out, what the hell did I do wrong?!?!?

The reason I was asking if your timing chain was excessively stretched (for the amount of miles which i assume is very few) is because this may indicate an excessive drag in the cam area which may indicate an oiling issue in the cam journals which may (not sure about any of this) lead to poor cam to lifter lubrication.. And this would coincide with your burned up cam bearings..

Someone here probably knows if its possible to starve the cam of oil flow (clogged oil galley or something else) and end up burning up the cam bearings and wiping the cam, or if that scenario would or could go hand in hand..

Are the cam bearings installed correctly with the holes lined up really well? If they were off alignment this would starve the cam bearings and burn them up and probably burn up the lifter bottoms and cam lobes as well (total speculation)..