Who knows factory cylinder heads ?

pearljam724 said

Thank you. When you say stamped steel. Do you mean numbers stamped into them ? If so, there were definitely numbers stamped into them. I was going to take a picture. But, I forgot. I’m not near the car now.

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You said your engine runs fine? Don't look for something to fix that doesn't need fixing. Saying that your Cam and things are junk is ridiculous.. old and not at its optimum performance very very possible..
I'll give you a picture here of a way to check your base circle. It's for adjusting adjustable rockers and gettingthe cam on the base circle where the rocker should be completely loose. Stamped steel is the term for non adjustable rockers. The rockers are just stamped out of steel..