Cam bearing a lifter question..

View attachment 1715978205 View attachment 1715978206 View attachment 1715978207 The gear on cam that moves distributor might have made that upon removal now that you mention it.
I have used worse in the past.
Knock of the high spots with some 1000 grit paper and clean them good use a good cam lube for reassembly.
Have your lifters reground and reuse them.
Most new lifters are junk now a days.