I plan on big HP soon, to around 500 at the wheels and, besides all planned suspension modification, i'd like to get a grip, so I was wondering what is the absolute max tire capable of being fitted, as i plan on going with the mustang hub swap. If the fender lips are rolled, would that increase the amount of space available? I would like to go with 17's for wheels or maybe 15's with some spares up front for drag purposes. i also plan the 89-92 spindle swap and mustang swap on t he front to get some space for 275s or more on the front if possible. Has anyone widened stock wheels? Angola Wire nearby widens wheels for $75 a set and it would keep the car sleepy . I have the aluminum 21 spoke cougar wheels, 15x 6.5. Also, how much space would there be available if i employ this method? would i have to add spacers to the hub ?