Many a Pontiac have seen the tail lights of my Dodge.....
Not much muscle in that brand of “muscle”car..
Sadly, that's true, beginning around 1974-5, when the stupid EPA crap all started. My first car was a Pontiac and one of the last of the old breed: '73 Grand Am with a 455ci V8 topped with a 4-bbl. Holly carb. It wasn't quite as fast as the Firebird but it was fast enough to get me in trouble with the local constabulary. Several times.
It also had nice front bucket seats, which I remember quite specifically because they could be adjusted nearly all the way down, which came in rather handy on more than one occasion... ;-)