Double the power, half the cylinders, sound that makes ya go holy #%$@! How could you power the stock tranny with this motor? (or other v-twin)
How about using a GXSR 1000 motor or other light weight/high hp motor?
your a genius! do it! there are motors on ebay. get something like a gsxr 1000. or a harley motor! that would sweet! wonder why know one thought of it before.