Freewheel really if it is that advanced why does it have a ****e engine in it ?
Every rose has it's thorn. (Oh I do love an 80s power ballad...)
Supply I'm afraid, fuel injection may solve some problems at the expense of others and will do nothing to assuage the determined naysayers.
Now if you could come up with a modern turn key installation in replacement for all those carb and even injected lycomings, you'll have yourself a million euro winner on your hands. (Or after certifications costs, about enough for a Big Mac)