I have the option, in a 15 inch wheel, of 

205 65 15
225 70 15

I'm wondering how much of a difference in torque and power the 225 70 would make...

I realize that on the one hand the rpms in third gear automatic would be reduced in freeway speeds

On the other hand it would slow acceleration and how fast you can go up a mountain...

I have a suburu 2.2 legacy engine

Would appreciate any input, thanks.