What are you doing to keep your Blitz air filter from getting all warm and toasty? 1 degree increase in intake temp. = 3hp reduction. Or is that the other way around?
Anyway, if you go open element, you have to have a heat shield, or you will bog like a Scottish marsh when you try to launch after sitting at a light.
Also, be careful of the offset on your rims, the bearings are stressed as it is.
Picture please