Kyle Busch is speaking out on his incident with Ross Chastain during the final lap at the NASCAR Cup Series race at Sonoma. While speaking with Bob Pockrass of Fox Sports, Busch said that his day was “ruined” because of Chastain spinning him out of a potential top-five finish. “A couple of guys there at the end of the race had better tires than we did but we were going to have a good day,” Busch said. “Unfortunately, one of those guys got into us on the last lap and ruined our day. It’s frustrating to not get the finish that we deserved.” This has been one of the few tough moments for Busch th…