Jimmie Johnson is never far from their minds.
"I've always been worried about Jimmie Johnson," Busch said. "I take him as being probably the best driver on the circuit. You never know what he can come up with during a race or what him and (crew chief) Chad (Knaus) can come up with in their cars to make it fast."
Edward echoed his chief rival, saying, "We talked about it this week, my trainer and I. We were kind of going over the guys that were really going to be tough and it goes without saying, Jimmie Johnson has proven that he can do it when it matters. I think that's one of the guys you're going to have to beat. You're going to have to beat Jimmie to be the champion."
While Busch has been the hottest driver this season, leading the points and winning eight races, and Edwards has been close behind with six wins, Johnson has had a so-so season -- for him.
The Hendrick Motorsports star is a distant fourth in the points and has just two wins and 12 top-10 finishes heading into Sunday's Pepsi 500 at Auto Club Speedway.
But nobody is selling Johnson short with two races left until the start of the 12-man, 10-race Chase -- least of all Johnson himself.
Despite struggling with the big, bulky and still-new Car of Tomorrow at times this season -- particularly on the 11/2- and 2-mile ovals -- Johnson said the No. 48 team is figuring things, perhaps just at the right time.
"We looked at the big tracks and know that's where we've been behind, and we've been working hard to catch up," said defending race champion Johnson, who will start from the pole Sunday. "I think we're in the right spot.
"We're on par with those guys. This week will be a better tale of it, and then as we get on those tracks in the Chase we'll certainly know where we stack up to them. ... I feel like we're fine on the short tracks, it's just the mile and a half stuff that we need to be a little stronger at to really put a fight up for these guys.
"I think we're there; I really do. You would always like to be ahead and that's why we're still testing and doing all we can. We should be a factor in this thing."
Four-time series champion Jeff Gordon, one of Johnson's teammates, has had some of the same struggles this season. He's winless, ninth in the points and still fighting for a spot in the Chase.
But Gordon, who will start third Sunday, also is confident that he and Johnson and new teammate Dale Earnhardt Jr. -- and maybe some others -- can make things interesting for Busch and Edwards in the Chase.
"That's the thing about the new format with the Chase is all it takes is two bad races ... and all of the sudden you're chasing," Gordon said.
Right now, the spotlight belongs on Edwards, who has won three of the last four races, and Busch, who has finished second twice in a row after winning three weeks ago.
"Those guys seem to have the chemistry, they seem to have the momentum and they have their cars and the talent to really pull it off," Gordon said. "Those are definitely the guys to beat and I'll be surprised if one of them don't win it."
Still, if he had to make a forecast, Gordon said he would pick Johnson to give Busch and Edwards the strongest competition or the title.
"Jimmie's got a good shot," Gordon said. "That team they're dangerous because they can turn things around. They're a two-time champ and they've got a lot of confidence, even though those guys they've been getting beat by the 99 (Edwards) and the 18 (Busch). I don't think they ever count themselves out.
"I just know how dangerous Hendrick Motorsports is in general. We just always are working to find whatever deficit we have or how we stay on top and you can never count them out."
The Chase format, which will reset the points -- with all 12 drivers in the postseason separated by no more than 100 points -- can make it tough on the guys who start out front.
"It really puts a lot of pressure on those guys when it all evens out (and) they have to pick it right back up again," Gordon said. "We went through that last year and pretty much prevailed. The best teams and cars going into it were me and Jimmie."
Gordon ran way with the regular season in 2007, but lost the championship to Johnson in the Chase.
"From what I've seen so far in the Chase, we haven't seen any huge surprises," Gordon said. "Pretty much the team I felt like was the team to beat either won it or finished right up front, and I expect that to be the same. But I'm also anxious to see a surprise, and I'd like to be the surprise."
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