Burton began his NASCAR Busch Series career in the 1990 season and competed full-time for four seasons. In his first season he had 23 starts with three Top-10 finishes, ending the season in 21st place. His results improved steadily over the next three years. For his second season, he had 29 starts with two Top-5 finishes and ten Top-10 finishes, completing the season in 18th place. In 1995, Ward started driving for Buz McCall in the #95 Caterpillar, Inc. Chevrolet after John Tanner was released. He drove for Bill Davis Racing in 1996 for eight starts in the #22 MBNA Pontiac.