Overall, I understand your thoughts and directions - and I don't disagree that there could be a class/category like this somewhere. Do I think it's a realistic idea for current day NHRA Super Stock? Not likely. But I think it is really a neat idea for a smaller local Super Stock organization to put on a class like this in a regional area. Personally - I really enjoy heads up racing and would love to participate in more of it. The spec head deal would be neat, but if there were ever large payout opportunities - that's when people are absolutely going to push the limits and invest large amounts to make more power and then cover it back up. AKA: Stock Eliminator, unfortunately. At the root of Stock, they are all "Spec motors." I bet a "stock" 1969 Camaro never went 9.90's
We're all innovators and always looking for the next loop-hole to gain an advantage - that's why we run Stock and Super Stock instead of S/Street/Gas/Comp.
I never meant to offend anyone or get this thread off-topic, of course. The original starter was asking the basic question of what makes a modified car. Hope I didn't derail the intent too far.
Mike