Fort Kent’s Austin Theriault had been racing four-cylinder cars at Spud Speedway in Caribou. But drivers and race people from the southern part of the state told Theriault and his father, Steve, that Austin needed to take the next step and that entailed moving up to a Late Model car. So the week before the track’s biggest race, the Spud 150, Steve Theriault purchased a Late Model car for his 15-year-old son — who promptly went out and won the 2009 race in his debut in the division Late Model debut. Theriault, who has won a host of races at several levels since then, returns to his home track on July 3 for the Aroostook Federal Credit and Loan Firecracker 200 Pro All Stars Series North Super Late Model race. It will be Theriault’s first race since October when he capped off one of the best seasons of his career by winning the ARCA Racing Series points championship.