I think its a combination of powertrain, suspension, the builders knowledge of available parts, plus racing knowledge that creates a special package such as the Brick that can outperform a Vette..
I'm not disagreeing with you. I completely agree that the car is a package and without all of it then it won't perform to that level.
What I am saying, and what I think Blu was saying, is that when you look at the one aspect of the suspension, it didn't take a coil over kit to get there. Not ignoring the rest of the car, but looking at only the parts that are pertinent to the discussion.
Blu wasn't saying someone could duplicate the Red Brick by swapping on his parts list onto a car. Only "look what the Red Brick did with mostly stock type parts".