Today NHRA added a new website to aide racers in finding needed info.
All the tech stuff you wanted to find is there. Now there is no need to wander through Pro data to find head cc's, what class your combo would run, or what wheelbase your car should be.
Go to
www.NHRAracer.com
Be sure to look at the NHRA Accepted Products list. There is a lot of info in that section that you will want to see.
Travis Miller
(Disclaimer: Opinions expressed by me on this forum are exactly that, my opinions.)