Mike Bos Chassis Craft Jr. Dragster Nationals July 24, 2010 - July 25, 2010 Positioned one weekend before final eliminations in the Eastern Conference Finals, the Mike Bos Chassis Craft Junior Dragster Nationals is becoming one of the greatest junior dragster events in the Southeast. The Mike Bos Jr. Dragster Nationals take place July 24-25 and provide a convenient option for racers hoping to tune their cars to compete at Bristol Dragway. The event kicks off a full eight days of junior dragster action.        Drivers will race in one of four age groups, 8-9, 10-11, 12-14 and 15-17, and compete for U.S. Savings Bonds that will be awarded to the top finishers.   Additionally, the Thompson Metal Monster Truck Challenge at Bristol Motor Speedway will take place after Saturday's activities at the Mike Bos Chassis Craft Jr. Dragster Nationals giving racers a chance to see metal mashing mayhem at its finest.