Help setting timing and vac advance

Nope, turning the Allen Screw CW reduces spring tension, does not increase it. You ALWAYS start with AS would fully CW.
Yes, you're right. My bad. I always get that mixed up. Here's a picture so you can clearly see it.

https://www.forabodiesonly.com/mopar/ams/adjustable-vacuum-advance.301/cover-image