Greg Biffle is not celebrating yet. Biffle had a strong two weeks at Charlotte Motor Speedway, capped by a second place in the Coca-Cola 600 - his best on-track showing this season. The Sprint Cup finish was just Biffle's second top 10 of the year (he was 10th in the Daytona 500) and only the third for Roush Fenway drivers this season.
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