Jeff Gordon on the backstretch for the second position. On lap 331, Hamlin passed Johnson for the eighth position. Two laps later, Kyle Busch passed Stewart for the fourth position. On lap 348, the twelfth caution came out for Biffle, who spun out with a flat tire. The leading cars made a pit stop to refuel and replace their tires. Earnhardt Jr. led the field to the green flag for the restart on lap 356. Two laps later, the thirteenth caution came out for Sam Hornish Jr., who spun and hit the wall. Earnhardt Jr. continued to lead as he led the field to the green flag on lap 363. Five laps later, Harvick passed Burton for the second position. On lap 373, Hamlin passed Edwards for the seventh position. Five laps later, Harvick passed Earnhardt Jr. for the lead in turn 1. By lap 382, Earnhardt Jr. had fallen to the fourth position because he had been passed by Burton and Johnson. Two laps later, the fourteenth caution came out for Jeff Gordon, who had bumped Kurt Busch, who retaliated by spinning Gordon out on the front stretch on the next lap. Mark Martin won the free pass under caution and got back onto the lead lap. Ken Schrader stayed out and assumed the lead as the lead cars made a pit stop. He led the field to the green flag on lap 393 but Harvick on fresh tires quickly passed him on the next lap. The fifteenth and final caution of the race came out on lap 396 when Tony Raines had a flat tire and spun in turn four. Jeff Gordon got the free pass under caution and got back on the lead lap. Gordon, Allmendinger and Hornish made pit stops under caution as Kevin Harvick led the field to the green flag on the lap 402 restart. On the next lap, Burton passed Hamlin for the second position. On lap 422, Mark Martin passed Kurt Busch for the twelfth position. Two laps later, he passed Montoya for 11th. By lap 437 Martin had moved up to the ninth position. Four laps later, he passed Edwards for the eighth position. On lap 456, Hamlin re-passed Burton for the second position. Eight laps later, Martin passed Earnhardt Jr. for the seventh position. On lap 472, Hamlin took the lead by passing Harvick. By lap 481, Martin had moved