12 inch slicks on a 10 inch rims?

The quicker 10.5 racers use a 12 inch rim, some even find success with a 13 or 14. This is extreme hp and double bead locks, so I'm sure this doesn't quite apply to a typical street and strip car..but it does demonstrate one thing if you want to maximize hook on a certain tire - go a little bigger than rated width, or at least match it.