Kasey Kahne continued his strong showing this year at Darlington Raceway, following a Trucks victory in March with a record-setting qualifying lap Friday for the Southern 500. Kahne won his fourth career pole in nine starts at the track "Too Tough To Tame" with a lap of 181.254 mph, surpassing the mark of 180.370 mph set by Jamie McMurray a year ago. Kahne was the marquee name in the Camping World Trucks event at Darlington two months ago while NASCAR's top two series had the weekend off. So how much did taking the checkered flag then help Kahne on Friday? Read more: http://sports.espn.go.com/rpm/nascar/cup/news/story?id=6495765