CLASS RACER FORUM - View Single Post - IHRA HP Rating 1973

MR DERBY CITY · 07-15-2025, 05:49 PM

[QUOTE=Jeff Niceswanger;714366]One more time. I've stated this 3 times now. They are using NHRA indexes and subtracting .3...……...[/QUOTE) WOW , twice you told us they are using the NHRA indexes and ADDING 3 tenths ….Now I am totally confused …..

07-15-2025, 05:49 PM	#3
MR DERBY CITY VIP Member Join Date: Feb 2014 Location: Derby City, USA Posts: 3,634 Likes: 1,083 Liked 7,920 Times in 1,515 Posts	Re: IHRA HP Rating 1973 - 2 BBL 307 Nova ? [QUOTE=Jeff Niceswanger;714366]One more time. I've stated this 3 times now. They are using NHRA indexes and subtracting .3...……...[/QUOTE) WOW , twice you told us they are using the NHRA indexes and ADDING 3 tenths ….Now I am totally confused …..