In 1982 he also appeared in the Carolinas including one bout teamed with the man who would beat him for the Cdn belt in 1983 - Sgt Slaughter.
In the clip below - from the fabulous Pro Wrestling 1970 To Present Blog - 'Big Nasty' is in Lexington, NC teaming up with Roddy Piper no less. What a great tag vs Wahoo and Jack Brisco ! Here in Toronto he had just had (Apr 25) an AWA title shot vs Nick Bockwinkel and the next week worked in a tag after John Studd had interfered and 'cost' Mosca the title. See pic at the bottom. The May 16th bout Mulligan Jr was replaced by an up and coming Jake Roberts who did double duty in an earlier bout vs Sgt. Slaughter.
82/05/16 MLG TorontoAngelo Mosca/Jake Roberts W Nick Bockwinkel/Big John Studd
MID-ATLANTIC TV TITLE: Ivan Koloff WP Outlaw Ron Bass
Jimmy Valiant W Pvt. Don Kernodle
Johnny Weaver/Tony Parisi W Pvt. Nelson/Tarzan TylerJake Roberts WDQ Sgt. Slaughter
Kelly Kiniski W Tito Senza
Tim Horner D Keith Larson
above pic is Studd interfering in Mosca's AWA Title bout on Apr 25 1982, don't think I have this pic on the site, another one that improves with Photoshop help.