I lived through those days. There was a lot of marijuana around. I'm not sure of all the types and various names for it.
I never smoked anything (cigarettes or otherwise) and never took any drugs. And never will. If I was hanging out with some of my car guy friends and one of them pulled out some marijuana I just said my goodbyes and left. I never lectured any of them about the evils of drugs. It just wasn't for me. And still isn't.
Back then I had a '69 SS396 Chevelle and my '64 Fender Stratocaster. Was a great time to be a young guy. (I still have the Strat.)