20x10" on a 66-67 Nova, anyone ever done this?
 

Nnot without a minitub I suppose?

Alternative is 20x8.5"
I know, much safer but with 8.5" I can only go up to 275 tires.......

I like the wide tires that fit the 10" rim.......

anyone?

Unfortunutly to fit what you want you will have to mini tub the car, probably not what you want to hear but it sounds like you already know this. I would suggest a mini tub with ultered frame rails to get a even larger wheel under the rear. Check the forums or have people send you some pictures of what they have done to clear the larger wheel/tire combos. You do have a few different options here on the tubs and that will depend on your budget.