Biggest rear drag setup on stock suspension?

[Plum crazy Bob]

New to the forum! Restoring a 73 340 cuda. It is going to be a nice weekend cruiser to take to car shows, I have a brand new set of 15x7 rally wheels wrapped in bfg rubber but want a set of weld pro stars with some meaty tires! What is the biggest tire and wheel you can fit in the rear with stock suspension and without trimming wheel wells?

 

[moparleo]

275/60-15 or 295/50-15 on the stock rims for the rear. Also welcome to the site.

 

[Plum crazy Bob]

Thanks buddie