i need some complex engine management tips (spitfire and hurricane)

[Osprey]

But the trouble is that this is a '*' new slot aircraft. Therefore it should've been done by somebody properly, a fan. I'm left wondering if it is the mod pack which make their own changes to the new slot type because they aren't happy with it. 40mph is a lot, it's not hard to find out speed tests.

Can somebody verify the performance in UP? or another pack? Wrong forum really, just frustrating.