It's not a 72 Nova, but here are a couple pictures of my '63 Nova bracket racer with radiused wheel wells. I would have loved to narrow and tub it, but it was outside of my budget. So I did what I could afford to do to get the 10" tires under it. As you can see in the second picture those tires stuck pretty good and gave me the consistancy I needed. Guess what you do, depends on your priorites and budget. I had mine done by a local guy who did moonlight body work and he did a decent job.

Pat