Kahne holds on at finish; Tight battle with Leffler ends with narrow victory.(Sports)

Byline: Associated Press

BRISTOL, Tenn. - Kasey Kahne passed Ryan Newman with eight laps to go, then held off several charges from Jason Leffler to win the Busch Series race, the Food City 250, at Bristol Motor Speedway on Friday night.

The race was marred by a NASCAR scoring error against Kyle Busch that cost him a chance to run for the win. Busch was penalized with 77 laps to go because NASCAR said he violated the pit-road commitment line. He had to forfeit his second-place position, a penalty NASCAR later said was incorrect.

But it was too late by then, as Busch had dropped all the way back to 28th.

"I don't know that I hit the line - I …