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Carl Edwards, driver of the No. 99 Office Depot Ford, drives during the Dickies 500 on Sunday.

updated 7:33 p.m. ET Nov. 2, 2008

FORT WORTH, Texas - Taking risks is a whole lot easier when you believe you don’t have much to lose.

Carl Edwards squeezed a victory out of his last tank of gas, racing the last 69 laps of Sunday’s Dickies 500 at Texas Motor Speedway without pitting.

And, this time, series leader Jimmie Johnson ran out of magic.

The combination of Edwards’ successful gamble and Johnson’s 15th-place finish chopped a big chunk off what had been a daunting 183-point lead for Johnson heading into the Texas race. Edwards trails by 106 points with two races remaining.

Although Edwards dominated most of the event, leading 199 of the first 264 laps on the 1.5-mile oval, it was the daring call by crew chief Bob Osborne that got his driver this win after several other competitors had used two-tire strategies to get ahead of Edwards near the finish.

“I thought Bob made a mistake on the four-tire change,” Edwards said. “But Bob came up with a way to win that thing anyway.”

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Osborne breathed a sigh of relief after seeing his driver chop 77 points off Johnson’s lead.

“We were very close, very close,” the crew chief said.

Asked why he would take such a big risk rather than settling for an almost-certain top-five finish that would still have cut substantially into Johnson’s lead, Osborne said it was because he could.

“If the points were closer, or we were in the lead, no, we would not have made that type of decision to gamble,” Osborne said. “We’re in a position where we want to make as many points up as we can. ... Obviously, we want to finish first, and that’s what we’re shooting for right now. It was just a risk that I thought was worth taking.”

Edwards, who inherited the lead when Greg Biffle pitted with 13 laps remaining, beat runner-up Jeff Gordon by more than 8 seconds — most of the front straightaway — and still had enough gas left to do a couple of victory doughnuts.

But each lap as he raced toward the finish, Osborne was in his ear telling Edwards to slow down and save gas.

“I just was so nervous that we were missing something,” Edwards said. “I thought there’s no way we can go this slow, save this much fuel and still be leading this race.”

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Even before he got out of his car, Edwards asked Osborne on the radio: “Hey, where did Jimmie Johnson finish?”

The answer certainly pleased Edwards, who is hoping to keep Johnson from winning a record-tying third straight Cup title.

“I hope to keep it exciting,” Edwards said, grinning.

A week earlier at Atlanta, Edwards won but was stunned to find out that Johnson had made a late charge to finish second and maintain most of his points margin. Edwards called Johnson, who had finished no worse than ninth in the first seven events of the 10-race Chase, “magic.”