well heres the deal. last front runner type tire i ran on my 64 nova was in the mid 70s i had 3.5 centerlines with a 165 65 r15 tire(used to be common size on a volkswagon bug). i just picked up a pair of 4 inch rally wheels and it seems availability of this tire size is nada. what tire sizes are being used with the skinny rallys now-a-days?