A Minnesota man won a 250-mile sled dog race through the wilds of northern Maine that is billed as the longest and highest-caliber race in the Eastern United States. Ryan Anderson, a 31-year-old carpenter from Ray, Minn., finished the 250-mile Irving Can-Am Crown race in Fort Kent at about 4 a.m. Monday in a running time of 31 hours, 22 minutes, 16 seconds. Anderson also won the 2012 race. ‘‘He seems to have tunnel vision when the race starts, and his goal is the finish line,’’ said race spokesman Beurmond Banville. ‘‘He likes to get there first.’’ Anderson won $4,500.