want to install TT IIs on my car. 20x8 all the way around. With 4 1/2 back space or 0 offset. Was told by tire guy that I might have a problem with front calipers hitting back of wheels. I have the stock Delco Moraines on my car, all the guys with C3s are they having issues with the calipers and the TT IIs. He said something about maybe a J-56 or J-86 caliper???? anyone got the details, please lets here it. thanks
Don
Don