i have an 86 n/a with eibach prokit springs and 18" konigs. i really dont think its low enough so does anyone know how low you can go with 18s and not rub the tires on the fenders. i want to get ground control coilovers. there is a nice gap between the tires and the fenders now i want to eliminate that cause i hate the way it looksi almost want to tuck a little bit of tire. please help