You are gonna need more then a cam.
Sticky tires, converter, Whipple supercharger and all necessary supporting mods so you don't hurt your car should do the trick.
Its hard to overcome a proper SRA drag car like the new 5.0L once you add drag tires and a tune.
Since sticky tires, H pipe and a tune on a new Mustang is good for low 11's you just may want to quit now and just deal with it before you spend all that $$$ transforming your SS into a drag car.
There is ALWAYS going to be something faster then you so that's no reason to run out and spend a bunch of $$$ on mods.