I have started building an 1100 up recently too, and was wondering the same thing, but now that that has been answered I have another question
I am considering the option of supercharging mine sometime down the track - I will just grind a new head to lower compression and change the cam.
At the moment I don't think I would do anything too crazy with it, just a basic supercharger setup, but you never know where these things will end up
Is +100" still the go, or should I bore it less to maintain cylinder wall thickness and block stiffness?