1971 was pretty much the last year for the big Hemi-powered cars from factories of Dodge & Plymouth. It was the peak of the muscle-car era.
Unleaded has and catalytic converters killed the power
Cars
I was 12 in 1970. Got my first job delivering the morning paper. Tina Turner and the Ikettes made me aware of women. We buried my next door neighbor (he lasted 3 months in Vietnam).
You are basically correct. 1967 was actually the last year there were no pollution control regulations for passenger cars. If you take a look at engine specs you will find that compression ratios for most engine families peaked in 1967 to 1970 and started decreasing from that point forward. Changes were made to the way specs were reported in 1971 to basically hide the decline.
I was a college freshman in 1971. I remember driving around in boyfriends car a gto with 8 track listening to all those songs 3 dog nite and grass roots
I am forever grateful to my boy friend who taught me to drive a stick shift in his 71 plymouth barracuda. I always had manual cars after that. I could leave the keys in my car unlocked as nobody else could drive it.