Yea, it will make it a little nose heave and you will probably have to add led to the tail. You more then likely will not be able to move enough equipment around to make it ballance, so led in the tail. Other then that, no big deal, just be ready for one fast plane. It will more then likely go stright up forever and it will be fast and drink more fuel, but other then that nothing that has stoped people from doing it before. Just remember there is a throttle on the transmitter and use it for the first couple of flights to get it trimed out and flying right then go for it if you like fast and over powered planes. No big deal really, but watch your prop clearence on that thing.
Ed