Here's my old car on a 2-inch drop sitting on 16x7 et40 RBs:
I would suggest nothing more than a 1.5" drop with this setup unless you want roll your fenders. With a fender roll, I would have been completely rub-free (but alas, the car was totaled during the winter before I had a chance to use my newly acquired fender roller). As the car sat in these pictures, I'd get light fender "kisses" at when I'd hit bumps at/near full compression.