I'm loving every part of this build (just stumbled upon it)
you're killing my future wallet my friend.....I'm JUST about to embark on a hybrid motor build (per Paulages' thread) using 550 cases, 650 bottom end, 750 liners, 836kit, and som serious machining......and now you're making me want to go EFI with it!
I'll be keeping close eye on this. Though, it would be AWESOME for you to make a simple one-post "How-to" for EFI conversion where you mention how you dealt with each of the challenges, where to get/setup base map, what sensors worked best, how to do this & that, etc.
GREAT work!