IIRC, probably best to stick with the a 17x7 if you plan to lower the car.
215-45-17 is the optimal tire size - which is what I have. Gator VR4 was running 17x7s with 205s (?) and he disliked it.
Good luck!
- Pete - 00 SVT SF/MB - 1522/2150 - DOB 1/12/00 ------------------------------ 92% says your group-NOT HOT 85% says your either wrong or BLIND Blackhawk Down did NOT suck you know who you are.....