In mid-1984, Zenk joined the American Wrestling Association, where he performed as an undercard wrestler until September 1985.
In October 1986, Zenk and Rick Martel were signed by the World Wrestling Federation. They teamed together as The Can-Am Connection. In the opening bout of WrestleMania III on March 29, 1987, The Can-Am Connection defeated Don Muraco and Bob Orton, Jr.. In mid-1987, Zenk resigned from the WWF.
Zenk returned to the American Wrestling Association to wrestle a handful of matches in early 1988. He returned again one year later. On February 7, 1988, Zenk competed in a 20-man battle royal for the vacant AWA World Heavyweight Championship, in which he was the last man eliminated by the winner, Larry Zbyszko. Zenk left the AWA once more later that month.
In 1989, Zenk signed with World Championship Wrestling. He debuted at Clash of the Champions VIII in September 1989 under the ring name "The Z-Man", defeating The Cuban Assassin.
In 1990, Zenk formed a tag team with Brian Pillman. In February 1990, they won the vacant WCW United States Tag Team Championship, defeating The Fabulous Freebirds in the finals of a tournament. They went on to feud with The Midnight Express, who won the championships from them in May 1990.
During this time, Zenk tore a muscle and took several months off to recover. He appeared more slender upon returning. Z-Man then feuded with Arn Anderson over the World Television Championship, eventually winning the title. He lost the title to Anderson on January 7, 1991. Later that year, Z-Man, Dustin Rhodes and Big Josh feuded with The York Foundation and The Fabulous Freebirds over the World Six-Man Tag Team Championship. Z-Man, Rhodes and Josh won the titles from the Freebirds in August, and lost it to The York Foundation in October. At Halloween Havoc 1991, Zenk lost to the debuting WCW Phantom. In 1993, Zenk teamed with Ricky Steamboat as "Dos Hombres". In May 1994, Zenk was released from WCW.
On December 9, 2017, Zenk passed away.