I had 265/50/15 fronts with 4" BS on 15x8 rims.
I had to change the rim later to a 5" BS due to the Aerospace brakes requiring a 1/2" spacer, this is just an extra tid bit of info JIC.
295/50/15 rears with 4.5" BS on 15x10 rims work well.
You will want to run aluminum drums if you are too close to the frame and poly bushings help with corners or turning on steep hills etc.
On the fronts, if you lower the car you might rub when you are going fast over bumps. I eventually had to cut out the front wheel well due to 2" drop springs that went in instead of 1".