He was part of the World Wide Wrestling Federation (WWWF) from its early years, appearing on WWWF cards as far back as 1965. He wrestled Bob Backlund in Madison Square Garden while working for the WWWF at the time. Dubbed the "Fire Brand From the Bronx" and the "Unpredictable", he was a proficient worker and a solid heel. Johnny would often tag with Jose Estrada, and Frank "the Gypsy" Rodriguez. For much of the next two decades through mid-1985, Rodz was a mainstay of the federation, though largely used as enhancement talent. On August 9, 1980, at the Showdown at Shea, he was defeated by "Polish Power" Ivan Putski. His last WWF match was a loss to Gama Singh on June 19, 1985.
n 1996, Rodz was inducted into the WWF Hall of Fame class of 1996 by Arnold Skaaland.