In early-1999, Shane McMahon brought in Gas and their mutual friend Rodney to film a series of vignettes about their upbringing in Greenwich to promote his match with X-Pac at WrestleMania XV. The tongue-in-cheek vignettes bragged about the toughness of McMahon and his friends from the "mean streets" of Greenwich. Gas (along with Rodney and two other childhood friends of Shane, "Billy P" and "Willie Greene") made his live debut in the WWF on the March 22, 1999 episode of Raw, interfering in a street fight between McMahon and X-Pac. Dubbed "The Mean Street Posse", Gas and the others went on to appear in McMahon's corner at WrestleMania XV on March 28, 1999, helping him defeat X-Pac.
After Gas and Rodney had made several appearances with the WWF, they were offered one-year contracts. Playing on their "preppy" image, the Posse members wrestled in argyle sweater vests and khakis.
Following WrestleMania XV, The Mean Street Posse were drawn into the feud between Shane McMahon and his father Vince, resulting in them facing Vince McMahon's "stooges", Gerald Brisco and Pat Patterson in a series of matches. On the April 29, 1999 episode of SmackDown, The Mean Street Posse became members of The Corporate Ministry. On the May 10, 1999 episode of Raw, Gas and Rodney lost to Brisco and Patterson in a loser leaves town match. They returned on the June 7, 1999 episode of Raw. On June 21, 1999, Gas and Rodney were joined by Joey Abs, turning The Mean Street Posse from a tag team into a stable.
In July 1999, Shane McMahon and The Mean Street Posse began feuding with Test after he began dating McMahon's sister Stephanie. This culminated in a "love her or leave her" match between McMahon and Test at SummerSlam on August 22, 1999, with Test to end his relationship with Stephanie if he lost and McMahon to drop his opposition to the relationship if he lost. Test defeated McMahon despite the efforts of the Posse, who were seated at ringside. McMahon reconciled with Test on the September 9 episode of SmackDown, but the Posse refused to do likewise, resulting in them ending their alliance with McMahon after he rescued Test from an attack at their hands on the September 13, 1999 episode of Raw.
After parting ways with McMahon, the Posse were briefly managed by Terri Runnels before allying with The British Bulldog. On November 14, 1999 at Survivor Series, The British Bulldog and The Mean Street Posse lost to Gangrel, Mark Henry, Steve Blackman, and Val Venis in the titular match.
On December 12, 1999 at Armageddon, The Mean Street Posse took part in a tag team battle royal to become number one contenders to the WWF Tag Team Championship. They gained an advantage by switching places with the third wrestler behind the referees' backs, thus enabling them to outnumber the other teams three to two, but nonetheless failed to win.
In early 2000, the Posse repeatedly tried to defeat Crash Holly for the Hardcore Championship, attacking the champion in unlikely venues such as an airport, a circus, and his hotel room. At WrestleMania 2000 on April 2, the trio took part in a hardcore battle royal for the title. During the match, each member would briefly hold the title, although Hardcore Holly ultimately won the match and left as the official champion.
On an episode of Sunday Night Heat later that year, Edge and Christian briefly became the managers of the Mean Street Posse. They accompanied them to ringside for the duration of their WWF Tag Team Championship title match with the Hardy Boyz, assisting the Posse with the proviso that they would receive a title shot if the Posse was to win. The Hardy Boyz thwarted the interference of Edge and Christian, however, and retained their titles.
Gas was released in 2001.
In 2007, he appeared on the 15th anniversary episode of Raw, competing in a battle royal, where he was eliminated by Bart Gunn. In 2016, Gas made several appearances on The Edge and Christian Show, a sketch comedy show on the WWE Network hosted by Christian and Edge.