NO, high pitch gives you speed, large dia gives you thrust.

So, if youve got a large dia fine pitch prop, youll have loads of thrust, increased throttling and long verticals. Get a smaller dia, large pitch you'll have loads of speed, lousy throttling and crappy verticals

The nitro wont give you more torque, all nitro does is increases throttling and rpm.

i would stick with the prop your using

What fuel are you using?

ian