Tires concern many drivers heading into Sunday's race (cont'd)

"I don't know if it will be better or worse because it's a different tire than we're running on the Cup side and I don't know what the differences are," Kenseth said. "I have no idea."

Edwards said he got an idea during practice Saturday.

"I'm nervous about [Sunday]," he said. "Our tires weren't holding up as well on the Cup car as they were on the Busch car [Saturday]."

Juan Montoya, who recorded his first top-10 finish on a NASCAR oval with an eighth-place finish, said it will be up to the driver to gauge the feel of his tires.

"I think the tires, you're going to see the same thing, people wearing tires down and stuff," Montoya said. "But I think the driver needs to play a little bit of a hand in tire management.

"I didn't think we were going to be as fast as we were [Saturday]. I think [Sunday] is going to be a little bit hotter. The Cup cars are a little bit more edgy so we'll see."

If Burton was in charge, he'd implement smaller fuel cells. But even that wouldn't have solved Saturday's problems.

"We have smaller fuel cells than we had last year already and the track will rubber up and get better, but it wasn't going to stop being a problem [Saturday], Burton said. Busch cars used 18-gallon fuel cells Saturday.

"There will certainly have to be some consideration early in the race for a competition caution to make sure we won't have problems," Burton said. "The Cup cars are much harder on tires than the Busch cars and that makes me nervous."