4 stroke !! In a Tipo ??
EWWWWWWWWWWWWWWWWWWWWWWWWW !!!!!!!
Next thing they will want to make it a tail dragger !! <GASP>
Hahhahhaa!!! Yessss............. A nice quiet 4 stroke

A superchaged YS would do nicely. My old GP Lancair with a Saito 100 went through the speed trap at 157 MPH (Right before the wing fluttered and broke in two[:@]) So, YES! A 4 stroke is superior to your whining (or screaming, as you might call it) 2 stroke antique engines[X(] Too bad the fuselage is so small, not enough room for batteries
Tail dragger??? Nah, I couldn't bring myself to do that