Overall tire height should be close to the same no matter how tall your rims are (lower profile rubber, which will have less sidewall bulge), the width is what gets you in trouble. These cars have deep inner wheel house lips, they can be shaved or rolled in if you really want the extra meat. The fronts will tend to rub on the front bottom lip of the fender well on stock height cars at lock turn in the parking lot. I believe Rukee if running 15" 60R/295's on his 65' without alteration, that's the widest i have heard of. I saw a brand new Camaro with 18"x10" wheels filling up the wells, as i am riding up on him i am thinking how the hell....then i see his fender is mangled at the leading edge and all 4 of his outrageously expensive tires looked like they were run through an apple peeler. Always safer to compromise form for function.