how hard is the redtop to wire in? can you use original loom ecu etc? thanks

I dont know how much difference there is but im running bike carbs and a dissy, and i had no problems at all, i ran the whole lot up on the bench first so it ain't that hard.

I imagine you have seen the other threads on the XE but just in case you should have a look at this thread

linky to another old thread

You wont be using the original ECU / loom anyway unless you keep everything totally standard which is highly unlikely. Personally i'd look at the bike carbs / throttle bodies route with MegaJolt (for carbs) or MegaSquirt (for throttle bodies)