Not sure what your luck might be and how your suspension is set up, but I had to trim the lower front corner of my front fenders to run 225 width tires on my car (technically a 67). I have a pretty "unique" setup in that I'm basically running rims designed for FWD with a wheel spacer to get them back as close as I could to the sock track width, so I can't say for sure if real deal stock rims would fit any better without issues. I used to run 205s on the front (I think, it's been a while) with the 225s on the back with a spare set of 255 street slicks. When I cracked a rim lip (still no idea how that happened), I finally caved and cut the fenders so I could run the old 225 rear tires on the front and keep the street slicks on the back. Though that does give me the added benefit of having the same wheel and tires on all four corners now that I bought a new set and got rid of the street slicks. Makes it easier to carry a spare, though a full size one still takes up too much room in the trunk. I need to find a narrower tire that sits flush with the floor but has an acceptable OD so I won't burn out my posi if I had to put it on the rear. Worst case I guess I could always just put the spare on the front and move a front to the rear, but that's a lot of messing around to do on the side of the road.
