In February 1988, the 5 ft 10 in (1.78 m) boxer was named to the All-Time team (in the middleweight spot), for the WM Golden Gloves in Holyoke, Massachusetts, joining fellow standouts Mike Tyson (heavyweight) and Marlon "Magic Man" Starling (honorable mention at welterweight).
Scully also advanced to the championship round of the National Golden Gloves tournament on two occasions, losing on a 3–2 split decision in 1987 at Knoxville (to Fabian Williams of Michigan) and a highly disputed 3–2 call in Omaha in 1988, to Keith Providence of New York City.
Scully also notably scored two decision victories en route to each of those national final appearances in 1987 and 1988 over hard-punching future WBC #1 Middleweight contender Lamar "Kidfire" Parks of Greenville, South Carolina.
Although ESPN commentators had the fight close, Nunn was awarded a unanimous win, including a curiously wide score on the card of judge Harold Gomes.
Scully also frequently served as a sparring partner for some of the biggest names in the sport, including the highly regarded world champions Henry Maske, Mike McCallum, Vinny Pazienza, Roy Jones Jr. and James "Lights Out" Toney.
The crowning moment may have been when he masterfully guided Rivera to the WBA Junior Middleweight Championship, with a clear points victory on Showtime over defending champion Alejandro "Terra" Garcia.
Notably, when Dawson seemingly began to mentally falter at the halfway point of the match, Scully masterfully kept the challenger steady, focused and on track between rounds.
In 2015 Scully joined the cast of the Nuvo-TV boxing reality show "KNOCKOUT" alongside Roy Jones Jr., Floyd Mayweather Sr. and Sugar Shane Mosley.