Here is a tire combo I tried first because I was concerned a 245/60-15 tire on an 8" rim wouldn't fit up front.
235/60-15 up front with a 15x7 rim with 4 1/2 back spacing.
Rear tires were 275/60-15 with 15x8 rims 4 1/2 back spacing.
I was not happy with it, the front tires appeared short compared to the rear tires. The fronts tires looked small and tucked under the car too much for me, I prefer the tires to fill out the wheel well more.
I had to crank the torsion bars up a bit to make the car look close to level which created too much of a gap between the top of the front tires and the fenders.
The 235/60 tires and 7" rim was not even close to rubbing the fenders on my Challenger.