64 64 Barracuda front tires and wheel sizes

I have 15x7 wheel on 235/60/15 rear tire. I am looking for tire size for the front. What is the widest and tallest I can use on a 14 x 5.5 rallye wheel without grabbing the fender? 60, 65, or 70 series??
I have stock drum spindles.
64-65 Barracuda application only..
Thank you.