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Old 12-24-2010, 02:23 AM
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NHRA sanctioned tracks are allowed up to a +/- 1% grade or slope to the track. IHRA uses a +/- 1/10"(?) specification. I'm not sure, but suspect that is a 1 inch in 10 foot grade change (.8%), maybe?

Anyway, that 1% looks like a lot from a distance or on TV from a wide shot. And like at this track, the track will often go "uphill" at 1% after the finish line.
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