Manifold Vacuum Advance what am I not getting?

They shouldda listened.
Yeah. I believe that is the conventional wisdom now.
I don't suppose I would respond well to a wet behind the ears teenager telling me I'm doing it wrong at thos stage of my life. So I don't blame them.
But when everyone else was boozing and getting laid In high school I was reading everything automotive theory related that I could find. I was obsessed. I had big ambitions.
Now I'm in my late 40's and can't remember much of it. Knowledge and skills are the same use em or lose em.