Your controller might not handle the following, but if you want the fastest here you go:
Mega Motor
ACn16/15/1 (9200Kv, 6 pole great torque) (
http://www.megamotorusa.com/BrushlessNew/ACn16-15-1.htm)
Neu Motors
1105/1Y (10500Kv, 4 pole a little less torque then 6 pole)
1105/2D (9700Kv)
1110/1D (9200Kv)
If you call Neu, they might even make you a 1105/1D and a 1107/1D, but those would be crazy 20000Kv and 12000Kv (Just guessing, but D winds are usually about double the Kv of Y winds).