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Excellent, now you can mentor the next person with the experience you've gained. And welcome from Minnesota.
Oops! Didn't see we were in the slant six forum. Only one valve cover lol.
If you remove the valve cover(s) there's a good chance there will be some dried up and broken seals in there.
Yup, for sure
Looks like your valve stem seal. Got a replace them for sure. Cheap fix.