Yes vaccum secondaries.
I checked the #1 spark plug after my test run,and the very tip is kinda white now.
I think I am gonna change them to about 65 each.
Maybe they were both originally set at 46, if you run them to open evenly.
With the progressive linkage, I am really running on the back primaries most of the time.
What's the worst that can happen, I run to rich?
Better then running lean, I guess.