Miller took a job as a salesman with Frito Lay in Philadelphia in order to finance the required flight ratings he needed to earn to qualify as a commercial pilot at Mercer County Airport in Trenton, New Jersey.
In 1987 and 1988, Miller was a pilot for Alleghany Airlines and Business Express, flying a Shorts 360 to and from regional and national airports in the northeastern United States.
The following companies sponsored the team during this period: General Motors, Dr Pepper, the wristwatch brand Wittenauer, Sunoco, and Lincoln Electric.
Miller's team delivered Dr Pepper's first corporate win on July 7, 2001 at the Coastal Plains Speedway in Jacksonville, North Carolina.
In 2006, Miller recruited a champion go-kart driver, Joel Jackson, from Kingston, Jamaica to compete in Formula BMW Americas on road racing circuits in the U.S. and Canada.