Using crappy modern oil,
Spots are all in a row along the cam
And, it really doesn't matter cause I'm replacing the cam, lifters, and springs anyway,
just never saw anything like that before.
Modern oils are for catalytic converters. If you don't have one, you don't need modern oil.
I'm not big on additives. They are a band aid.
Buy a proper fromulated oil for flat tappet engines. A quality oil won't seperate.