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MikeMoller · 07-14-2014, 10:03 PM

Pretty sure you can basically use the NHRA guide, which is based on the factory HP. You may have to contact an IHRA tech for the factored HP. If you can get to an IHRA ProAM, they have the books in the tech trailer - at least in Division 9. I have never found the IHRA classification guide online.

07-14-2014, 10:03 PM	#2
MikeMoller Senior Member Join Date: May 2010 Location: Raleigh NC Posts: 635 Likes: 27 Liked 254 Times in 78 Posts	Re: IHRA Classification guide Pretty sure you can basically use the NHRA guide, which is based on the factory HP. You may have to contact an IHRA tech for the factored HP. If you can get to an IHRA ProAM, they have the books in the tech trailer - at least in Division 9. I have never found the IHRA classification guide online. __________________ Mike Moller NHRA 203 Q-R-T/SA