In a week, Dale Earnhardt Jr. is going to go racing at Bristol Motor Speedway once again and he has revealed part of his preparation. Earnhardt almost won the NASCAR Xfinity Series race last season at Bristol before a fire at his feet ended his night. If you liked what you saw last year at the Last Great Colosseum, then you are going to love this news. Last year, Dale Jr. had such a great car and it was one mechanical fire that ruined what could have been a historic victory. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! However, Dale E…