Highberger's debut came in 1982, when he competed at Martinsville. Starting positions in the forty-car field are unknown, but Highberger had a decent race and wound up 24th. He was able to improve on that later in the year, finishing a career-best 18th at South Boston despite a crash.
Highberger had to wait until 1986 to compete in his final race, racing once again at Martinsville. Starting 30th in the field of thirty-two, Highberger again survived the tough track to emerge with a respectable 19th place run.