'68 Barracuda Notch
If you want 17s and same height front / rear you can go 245/45-17 front on an 17x8, 275/40-17 on the rear on a 17x9.5 I had to run the "low profile" ball joint with my '75 upper control arm spindle combo on the front to make that work. I have a few pictures if you need clarity. It would be best if you have a way to fit test before you buy on the front wheels! Can you fit an 11" wide tire in the back?
Second picture in post #3 of the following link is a 245/45-17 on a 17x8 on the front. A 275/40 is the same sidewall height.
http://www.forabodiesonly.com/mopar/showpost.php?p=1285701&postcount=3