There's something screwed up, even my old cheap UPR Shark caster camber plates would get my car back into specs. 2 degrees of camber is what's wearing out the inside of your tires, I autocross and only have 1.5 degrees in mine. With a lot of caster and wide tires, the car will track in the road and it's made worse with that much camber, and if you don't have a bumpsteer kit, that sometimes will make it track badly from the toe changes. Bumpsteer can also contribute to the wearing of the tires also.