Saturday notebook: Kurt Busch one to watch in Go 400

Saturday notebook from Pocono Raceway: Carl Edwards says his No. 99 Roush Fenway Racing team has 'nowhere to go but up.'

Kurt Busch has been the driver of one of the fastest cars in practices all weekend at Pocono Raceway.

Todd Warshaw / NASCAR

Kurt Busch fast all weekend -- Stewart-Haas Racing's Kurt Busch has been one of the fastest cars in the garage all weekend at Pocono Raceway. The driver of the No. 41 Chevrolet topped the speed charts in the first two practice sessions of the weekend, and was eighth in Saturday's final practice.

Starting fourth on Sunday in the Go 400, Busch will be looking to improve on his third-place finish earlier this year in June, possibly score his second win of the season and go a long way in securing his spot in the 2014 Chase.

Double duty not slowing Keselowski -- Brad Keselowski is pulling double duty this weekend, traveling between Pocono Raceway and Iowa Speedway for Saturday night's NASCAR Nationwide Series race.

The unique travel schedule did not slow down the Team Penske driver, however, as he topped the speed charts in Saturday's final Sprint Cup Series practice session at Pocono Raceway.

Keselowski will start Sunday's Sprint Cup third behind Kyle Larson and teammate Joey Logano. The driver of the No. 2 Ford dominated the June Pocono race, leading 95 of the 160 laps, but was forced to give up the win to Dale Earnhardt Jr. when trash on his grille caused the car to overheat.

After Cup practice, Keselowski headed to Iowa -- where he qualified second-fastest for Saturday night's Nationwide race there.

Win and you're in -- Time is running out for drivers to win their way into the 16-driver Chase field. Sunday's race presents another opportunity for those without a win to find Victory Lane and move one step closer to a Chase berth.

Among those Chase contenders without a win in 2014 that are looking strong this weekend include pole-sitter Kyle Larson, Ryan Newman, Clint Bowyer and Saturday's Camping World Truck Series winner Austin Dillon.

Joe Gibbs Racing's Matt Kenseth, also winless so far this season, has struggled this weekend and will need a significant amount of strategy to find Victory Lane on Sunday.

Look again -- Watching Sunday's race at Pocono Raceway, you may need to look twice when you see the Mobil 1 Chevrolet on the track.

Typically a primary sponsor on Tony Stewart's No. 14, the long-time racing sponsor is serving as primary sponsor on Kevin Harvick's No. 4 Stewart-Haas Racing Chevrolet.

VIDEO: A look back at NASCAR's top five finishes at Pocono

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