Winter changes on the AMX. Are you going to make any changes on your race car?

I've been using M/T pro braket radial slicks 14x32.
I've been running Hoosier bias ply 12x29 for years but they spin at tracks that aren't prepped well. I've been considering trying a 14x31 or 32 to see if I can get rid of the spin. They say they will fit on a 12" wide wheel and I have 2 pair of those and don't want to buy new wheels.