In the 80s there was a ton of questionable quality gasoline. At least today there's an EPA minimum cleanliness standard.What an absurd claim. Lets see all the claims for clogged fuel systems caused by non "Top Tier" gasoline. A little extra detergent for some marketing babble to make the sheep think they're getting "better" gas. Nonsense.
There was no Top Tier gasoline back in 84 and that Pontiac would have run and would still run just fine on any gasoline no name or name brand without fuel system clogging. Stop being an hysteric.