i suggest you raise it as far as you need to and get it corner balanced again. then measure the height of each corner and jot it down somewhere. that way you can re measure and adjust later to the height it needs to be as the springs settle further.
street cars needs travel... i dont recommend lowering it too much nor stiffening it too much. looks silly too when you have to slow down to 10mph just to go over a little bump while regular cars and stock Z's are going over them at 55mph.