Why did Kurt Busch pit from the lead late in Sunday's race?

   It's probably one of the most puzzling questions from Sunday night's rain-delayed Food City 500 at Bristol Motor Speedway - and that's saying a lot considering all that transpired.

   Why did Kurt Busch - in the lead late in the race - elect to pit for new tires? As it ended up, Busch was the only lead-lap car to pit which left him with a lot of ground to make up once the race went back to green.

   Here is what Busch said about the decision to pit:  

   "We had 100 laps on our tires. I thought we needed to pit. (John) Klausmeier (engineer) thought we needed to pit. Then I was thinking this is the Bristol of old we might be able to get away with staying out. It turned out that (Matt) Kenseth brought it on home to Victory Lane. Congratulations to him," Busch said.

   "We had fresh tires coming up through. (Carl) Edwards pushed the cushion. He hit some ice, I hit the same stuff or he was throwing the marbles out on the track and I just got sucked right in there. I was like, 'I’m avoiding the wreck,' but I couldn’t do anything to avoid them.  We salvaged 15^th.  The car could have won."