08 4runner with Fj wheels
 

I have a 08 4runner and a set of Fj wheels. The Fj came with 265 70 17 on it. I also installed a 2 1/2 leveling in front and a 1 1-2 in the back. Does anyone know how big on a tire I can put on it . Or should I keep with a 265 70 17 help would be nice thanks