- Terry Blount, ESPN Staff Writer
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FORT WORTH, Texas -- So much for using that new Chevy engine for Kyle Busch. He slammed into the Turn 2 wall in the first Cup practice session Saturday morning.
Busch went to his backup car, which doesn't have the new RO7 engine that six Chevy drivers planned to use for the first time Sunday in the Samsung 500.
Busch also will have to start at the rear of the field, giving up his spot on the inside of the third row. Busch was 24th in the final practice session in the backup car.
Edwards fastest in practice
Carl Edwards led the final Cup practice session Saturday. Edwards turned a lap at 188.534 mph in the No. 99 Ford.
Jeff Gordon, who starts on the pole because qualifying was rained out, was 28th on the speed chart in the final practice.
Jeff Burton believes speedway owners need to think twice before repaving the racing surface of a track.
"Repaving is worst thing you can do to a race track," Burton said. "History shows it screws up things more than helps. You're going to have tire problems when we first go there [on new pavement].
"It doesn't enhance the quality of the race. All it does is make Goodyear have to build a harder tire that can withstand the load. Except for a maintenance issue, we shouldn't do it. It's a no-win situation."
Terry Blount covers motorsports for ESPN.com. He can be reached at email@example.com.
Kyle Busch will start from the back of the field in Sunday's Samsung 500 after crashing his primary car in practice. He will drive a backup car in the race.