Back half regrets?

Wouldn't think you need to do a full b/half these days, I went big tire back in my day and ruined a good '69 Cuda but it was race only, tech wasn't as good back in the late 80's. My mate with his Dart mini tubbed and with a 1" move of the axle got 13x31's on there with dble adjustables and SS springs and that handled a 600hp 440 easy...can do it with less tyre as well, just got to know what your doing.