Re: IHRA HP Rating 1973 - 2 BBL 307 Nova ?
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Originally Posted by RileyRacingEntrprises
UPDATE
Called Them and they said they are using the same ratings BUT they are using indexes 3 tenths slower HOWEVER - When i look on their web site the listed indexes are the same as NHRA ? So i dont know
Anyone know where to find HP ratings for IHRA, or are they just going by the NHRA numbers ? I have a 73 Nova with a 307 that is factored with NHRA to the point im not spending a dime on it with that combo. I was wondering if IHRA may have a realistic HP rating for it so that I could actually race the car
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One more time. I've stated this 3 times now. They are using NHRA indexes and adding .3.....Simple as that. don't worry about their website. Worry about how they did and entire event...twice. Why would you call them and ignore what they told you...
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Jeff Niceswanger 3740 SS
Last edited by Jeff Niceswanger; 07-15-2025 at 06:53 PM.
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