For newbies, stall limiter is by default on. Go into your flight settings and uncheck it.
I personally feel there aren't enough torque effects on MANY planes in AH. However, AH has by FAR the better flight model especially when it comes to stalls, spins, and departures. IL2 has every plane with the same flight model. AH has separate models for each plane.
That said, it's not perfect, but much better than IL2.
P.S. Hitech has his own RV-8. He also has this modeled in-game using the flight model. He can test something in-game and know it feels like the real thing because he has it. He also has flight-time in a P-51D 2-seater.