What size tire should I put on a 90 sedan with 15x8 +20. I dont want to dump the car or run a ton of camber, I would like to have one finger gap all around. I was thinking a 195 45 or a 205 45.

 

on a 8 inch wide wheel

195 and 205 width tires should be run on a 6 inch wide wheel or a 7
but on a 8 inch they would be stretched

 

Actually as far as track performance, it's already been proven that a 205/50/15 uhp or summer max performance tire is fastest on a 8" wheel. 225/45/15 best on 15x9 wheel. I mention performance rating because they tend to run a tiny bit wider than a standard or all season performance tire.