:If you push down on the back of a car setup for drag racing, the suspension can easily be compressed. Cars like Mustangs can get good traction from the factory because the rear end can easily squat and the suspension is really soft
Cars like mustangs hook because of their suspension geometry not because of how soft it is in the back.
How do I pull 1.7 60' with stiff linear springs? I put the stock shocks on soft setting. Then I unhook the fronts and turn the switch to stiff. This makes the fronts softer than the rears. Car launches like a bat outta hell just on DR(as you've seen my videos). This is all on roadrace springs.