how exactly does Hilborn MFI work? does it use like a cam to open up injectors? have never looked at 1 up close. running a Megasquirt I with the EFI hilborn seems like it would be the easiest, MSII tuning program requires a little programming to " tune it " for the box you have, because there is MS 1 and MS 2 and both have 3 versions, 1, 2.2 and 3.0 but all directions are on the net.