360 Questions.. pardon my ignorance.

CoolDave said
Makes sense.. but all the diagrams I’ve seen and threads I’ve read show it to be correct. It’s the standard Holley 2245, the vacuum advance is hooked to the small port that comes out of the passenger side of the carb.

I found this but it doesn't help much if at all. I've got 99 vacuum ports but none of them are labeled for the vac advance. Unless they're calling it an OSAC valve in this diagram.