If I were to try EFI, I think I would get compleat 3.0 even fire and work on it mounted on a test stand. It's such a big project it is at the end of my to do list.
I've been thinking about another project for quite some time but have to keep this also on the back burner. That is a new ignition ECU that lets you adjust ignition timing on the fly. So you would set your ignition timeing at 20 deg. and it would delay each fire to let you adjust it to any value less the 20.