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04-19-2009, 09:51 AM
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#4 |
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Member
Join Date: Dec 2001
Location: Hanover, MA
Posts: 430
Likes: 3
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Re: Horsepower factors
IHRA doesn't have a class guide persay. There is a section on IHRA's site that lists all the hp adjustments. If the combo you're looking for isn't on that list then it is still at the original NHRA factor.
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Doug Blackley 1697 STK |
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