it is very known that it was 0.0% as stated by Jim Quinn
Please stop believing such claims....
Bodybuilding is all about Illusion, guys like Pastel,Nubret,Gaspary,Wheller,Labrada,Munzer,Platz etc gave the impression of having lower bf than their real percentage... they were other bbers at a given time standing with less bf still not looking as dry as some of mention above.