Ya I have flown my P W 300 with a zdz 40 sport through 2 gals of gas, it is a real dog, I got it from Chief aircraft with a 40 as a package, the 40 has only 6600 rpm on an 18-10 prop they claim
it doe's 7400 0n a 20- 8 and a 20-10 prop on way, on vertical at full power it just stops flying and than snaps out, mine is an early
version and the cardboard wing and stab tubes are breaking.

It will fly with the cowl off but when you put the cowl on
the engine will not even run properly on the ground,
a friend of mine has the same thing with a Zenough 45.
booy [email protected]