Johnny Perry was from NC, not Canada and was gorilla big and strong, Kaz strong... I know a PLer who trained with him & Perry inclined 495 for 10 with no hand off which doesn't happen outside of the fantasy land of muscletech adverts.
A coke overdose killed him, not AAS.. very sad as he was a potential WSM.
anecdotally, lots of test and lots of abombs and most importantly LOTS of food..
the average strongman doesn't look much like Mariusz