[JhwShark]

OK
The miss only happens once car has warmed up.
Valves should be still in adjustment.
We now know that signs of rich conditions exists.
You have replaced a lot of stuff.
It is burning some oil...How many miles on engine?

We do not know if the car has a Balst resistor in line to the distributor? If this car has one, a white ceramic rectangular block, that can crack and when warm the internal wire can have an Open which causes misses.

Are the plugs fouled uniformly such that they all look (are fouled) the same? Is there any way to get a Smog shop readout; HC, NO, CO. Sometimes a bad catalytic converter with an Oxygen Sensor once warmed up can cause missing high NO, HC CO; all plugs would look the same as well. I use the CO meter on my old rigs that do not have sensors. If you can get a smog readout skip getting a CO meter (it already appears you will have a rich reading).
All plugs fouling also possibly shows from oil burning.
If non-uniform plug appearance, you may find a variance on the compression reading for one or more cylinders.

I'll keep watching...
Jon