That is a 28" diameter tire and will be SERIOUSLY pushing the limits of fitment on your ride. The 6.5" BS is fine and even the 325 will fit, but be tight.
I suppose if you were stock hight and had drag-bags so you wouldn't compress the rear springs much, you may be OK.
Hopefully some pepes with more 1/4 mile experience and over-sized DR's will chime in here.
Jazzer
