You can't spin that nut because everybody figures we all use the special reduced head nuts that cost about a buck per. I've given up and just use them for everything, since nothing fits without them (headers, intakes, etc.). As for the rest - you're a regular Renaissance man, @Michael Pickett.
I can't think of a single guy here who wouldn't be excited about a low-cost EFI solution. I think it'd keep a lot of guys in air-cooled mills if it became more common-place.