Ruben Navarro and Frankie Crawford were a couple of Mando Ramos' partying buddies. Also Frankie Duarte was known to enjoy the nightlife as well. But the leader of the pack may have been Toluco Lopez, who imbibed in an indigenous drink called pulque (hope I'm spelling it right). He had gobs of natural talent but was getting wasted on this stuff and his training suffered. Around the time after the second Duran-Leonard fight, the Ring did an article on macho and some of the effects of partying too much and they relayed a story on Toluco Lopez when he fought a journeyman named Willie Parker. Lopez was drunk/hungover on pulque and Parker starting working his body when he saw success down there. By the time he dropped Lopez everything had gone to work on Toluco and the excrement was running down his legs and was stopped in 9. He whipped himself into immaculate condition as one would after such an embarrasing moment and boxed Parker's ears off in the rematch, but this was how much of his career played out letting the booze get the better of him and unable to attain the heights his natural talent could have taken him.
As well as John l, Maher, Jackson, Goddard, Killen, Cleary were very heavy drinkers among the early heavies.