Catching a non-rotating lifter on first startup.

So I chucked up the questionable cam into a lathe and I was able to measure about 1.5 thousandth of taper on ALL the lobes, including the #2 exhaust lobe that the lifter wasn't rotating on.

So the old lifter didn't rotate, the new lifter didn't rotate and a new cam and a set of lifters were fine.

WTF