I am about to buy wheels and tires for my challenger, wanted to get advice before I spend money that I may regret. Car is 70 convertible, all stock suspension. My plan is 18x9 with 0 offset / 5" backspace in back with 255/45/18's and 18x8 with 0 offset / 4.5" backspace with 245/40/18's in the front. I know with this tire setup I'll have a little rake, which is what I want.