Wednesday, June 4 2008 -- Points leader Kyle Busch made mincemeat of the competition and a mockery of Sunday's Best Buy 400 at Dover International Speedway.

In a race that stayed green for the final 153 laps, Busch gained a total of 5 seconds over runner-up Carl Edwards on his final two pit stops, built a lead that topped 8 seconds and cruised in his No. 18 Joe Gibbs Racing Toyota to a 4.225-second win. The win was his fourth of the season and the eighth of his career.

Pole-sitter Greg Biffle ran third, followed by Matt Kenseth, Jeff Gordon and Martin Truex Jr., as only six cars finished on the lead lap.

Busch grabbed the lead from Edwards during a cycle of green-flag pit stops that ended on Lap 237. NASCAR called a caution on Lap 243 for debris in Turn 2 -- under which the leaders remained on the track -- and after a restart on Lap 248, Edwards dogged Busch until both drivers brought their cars to the pits under green on Lap 319.

Busch gained almost 3 seconds on pit road and pulled away steadily for the next 60 laps before backing off in the closing circuits.

"We didn't have the car to win," said Busch, who expanded his lead in the championship standings over eighth-place finisher Jeff Burton to 142 points. "Carl Edwards and Greg Biffle did. But our guys on pit road were phenomenal, got us out front and that's what won the race for us. The guys that pitted this thing on pit road definitely won the race for us."

Edwards acknowledged he was slow getting off pit road on his final stop, but he gained two positions to fourth in the Cup standings with the second-place finish.

"It's not what we came here for, but the car was good," Edwards said. "I wish we could have put on a better show for the fans. I wish we could have had a caution there at the end, but Kyle deserved it."

Biffle led 164 laps to Busch's 158, but he developed an ignition problem on Lap 169 and surrendered the lead to Edwards before switching to his second battery. Biffle ran the rest of the race without the use of air conditioning or brake fans in his car.

"The engine started missing, but we changed batteries, and it came back on line," said Biffle, who vaulted six positions to fifth in the Cup standings. "We were just a little too tight all day. That's really what the problem was."