9-Second, Stock-Looking Muscle Cars—Inside The Factory Appearing Stock Tire Class

I saw these guys run at Indy a few years ago.
The fastest 2 chevies were 69 Corvettes. Both had 15x8 rallies, and fairly bald (shaved?) Firestone wide O vals. Both cars were L-88 powered and ran in the 9s.
And im telling you, those cars really looked stock!
Vettes are well balanced. But they are heavy, and of course EXPENSIVE. But if money is not the object? Then so be it. Personally? I like a Duster build. Being naturally a little nose heavy they launch well. (Although that's with wider slicks.) It's the 6.5" max tire requirements that will test any design concepts? And what works for traditional drag race index racing? May not under these rules?

I remember Hot Rod magazine did a from showroom to track test in early 70s. Absolutely no modification. Including air filter, tires. And a '69 Nova SS won running a 13 flat with a L78 396. Now of course that's far from scientific. And many were running low 13s. I believe Mopar's best was a '69 Hemi RoadRunner. At 13.20s. I believe both were auto trans. And if I remember right? No practice run. Just line up an go. (Which certainly will hurt 4-speed chances?)