Not a perk at all. It is slower than a C.205 but a better turner with better handling above 20K. PYRO has the original flight and manteinance manual and more data than he had when he modeled the C.205.
Moreover, adding the DB603 data to his flight model, you could build a very good perk plane, the G.56. Same fuselage, same wings, same armament.
Bring the G.55 (and the perked G.56) to AH!
[ 11-29-2001: Message edited by: gatt ]