hey guys im redoing the suspension on my wifes 68 xr7 , ive done some searches but cant find exactly what im looking for. her car has disc brakes already up front. is there something else i can upgrade with? like from a different car that would help stop it better? they look old so i was going to re do the brakes with some cross drilled rotor and maybe some ebc pads but then i started thinking , what better time to beef them up, hopefully someone has some input for me. also while im tearing down the front end. what about lowering springs i hear all this about 620 but i cant find where they sell them or if they actually lower the car or not.