To Vacuum Advance or Not to Vacuum Advance

That or restricted intake class.
I always think circle track for running restrictor plates or spec'd 2 bbl carbs, but could be drag racing too.
There are (or were) some NHRA stock classes where 2 bbl 273 B-bodies fit in. R Stock, T Stock? Something like that. A coworker and somewhat of a mentor when I first got into this stuff had run in it. Claimed to have held the national record for a while, and I believe he did.