Build site at
http://www.priveye.com/cobra.htm
I have no booster. I use a Tilton Racing floor mounted pedal set with two master cylinders (front/rear). I've got 11" rotors all around. Remember that the car only weights in at 2200/2300 lbs. Does not take alot to stop it.
The booster setup, in my opinion, is overkill. It is hard to install and maintain the master cyl.
Roscoe