73 swinger tire size opinion

I have the 500's and love them. I have also had a set of T/A's on a different car, and while they were awesome in the dry, they were slippery in the rain. But since they were different cars (T/A's were 225/50/16's on a BMW 535is) it's kind of apples and oranges. In your area, rain performance is probably not a big consideration anyway.

I will say that depending on the width and backspace of the rim, if you run the 225's up front, you might very well have clearance issues. DEFINATELY don't try and lower the front. My experience with 215/70/14s on 5.5" rally's on the front of my '73 disk brake equipped Duster was that after lowering the car significantly, the outside tire would rub on a tight corner. I have since raised my car back up to near stock height (I prefer it, just wanted to experiment).