New engine issues

OK understood... but honestly, you can't tell how far down they are without an actual measurement. It can look pretty darned level with that large piston top area but can be many ten's of thousandths down in the hole when you make a precise measurement.

All this was to figure out what you have so as to understand the engine combination. It is what it is, and the compression readings are what we have to go by.

Have you been able to try any of the suggestions to help the symptoms? And was the 20" of vacuum at idle, or was it while driving around, maybe while coasting?