Well I think I have solved part of the problem. I seem to go through the plugs on the opening that are used on the carburetor to block off vacuum ports, this is the 2nd time I have had to replace some of them. I found cap that had disintegrated enough to allow air to come into the carb base. Checked plugs and they were a little rich, still brown but not tan. Dwell was right on, also checked vacuum at idle, it was 12.
Went for a drive including a trek up the mountain to Virginia City, down into the valley and to home, filled up again, got 11.19 MPG.