NEMCO made its Winston Cup debut during the 1993 season at the Slick 50 300, where Nemechek started fifteenth and finished 36th in the No. 87 car. NEMCO ran two more races with Nemechek that year, at Watkins Glen and Michigan, where he finished 21st and 37th, respectively. NEMCO did not race in the series again until the 1995 season, when Nemechek moved the operation up to Cup full-time. With sponsorship from Burger King, Nemechek posted four top-tens and finished 28th in points. The next season, he had just two top-tens and dropped to 34th in points. After he signed with SABCO Racing, Nemechek abandoned the team's Cup program, and sold the equipment to the SABCO team.