(Sorry Keith, not meant to hijack your thread homie)....Well I run a 175x70 all the way around on the 6 and 7"s. The front are 7 so they look fine. The rear look fine since my car has skirts but I think the only way you would tell any difference is if you have hydros and the back is locked up, you would see the difference in the tire stretch but only from standing directly behind the car. Even still, I had all 4 rims laying on the ground with the tires mounted and I had to really look to make sure I was about to mount the 6"s in the back. It was hard to tell the difference.
On the other hand, I know a guy here in town who has 14x6 all the way around on his fleetwood. It looks alright.
if anyone wants to buy them peanut butter spokes with black dish up there hit me up i got tires on em with stickers. they 13s. the rims were never mounted still in box from keith. pm or some shit ill give u a deal.