great posts by burnsauto and dj sunrise (+1 rep), that pretty much covers it I think (along with the rest of the great posts in this thread).
The only thing I have to add is to consider replacing the panhead screws that hold the injector caps in place with some socketheads to make it easier for the next time you swap them out (plus some stainless steel or chrome socketheads look badass). I don't know about everyone else, but I couldnt believe how tight those panheads were, I stripped half of them taking them out, and I'm pretty certain it was unavoidable.
edit: here is a short write-up I did about this sometime last year, but I don't know if I ever posted it here or not.
http://www.cardomain.com/ride/2050793/9