I've had an idea for a while.. We produce Full Tube Chassis versions of current production models, much like the GT classes in Super Stock, only lighter. Dimensionally identical bodies.
Then... Power-adders in Pro Stock. I would go twin 35mm turbos, 4.0L supercharger for limits. Base engine package needs to be based on what's installed in the model car from the factory. So if you run a Camaro, You could run the 2v 7.0L motor in 2014. Mustang could run the new Blown 5.8L 4v DOHC. Or you could run either with twin 35mm turbos. Dodge would have to get rid of that awful Avenger box and use a Challenger or Charger and they could use the latest Hemi.
Instead of weight breaks by cube or power adder... I'll throw in that the lightest curb weight on the factory model is 2350 lbs.. Take the ratio of curb to race weight, and the cars must weigh proportionately to the curb weight of their street counterpart.
So...
2014 Camaro Z28 - 3800 lbs. - 2350lbs. 1.61:1
2014 ShelbyGT500 - 3845 lbs - 2389lbs.
2014 Challenger SRT8 - 4160 lbs. - 2584lbs.
That Mopar better have more power or lose some weight!! If you're worried about Aero, then the factory needs to make a more Aero friendly car.
If you want to use NHRA to sell on Monday, I think this is how you do it.