Newbei 67 Plymouth belvedere 318 2bb dist vac port is timed or full.

Thanks Steve!
I think I had a brain fart on that last post.
Timing should be set with the vacuum line disconnected and plugged, so in theory the initial timing would be set the same ported or manifold.
Like you, I am trying to learn more about carbs and timing. I will look into the book that TrailBeast has referenced.
After reading the article I referenced I switched my distributor vacuum to manifold - and I think it seems more responsive.
C