I am trying to learn.

How do you know if a cam can be reground?

How do you know if lifters can be ground.

How would regrinding cam/ valves affect the valves?

When I look at the cam, what am I seeing? Shiny areas vs dark areas?

I have attached photos of my cam and of a couple of my lifters.

If you can, help me understand what I am looking at.

Thank you.
Chris
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Rock49 aka C-Rodg
work in progress
1956 Chevy 3100
261 engine