http://www.parkzone.com/Products/Rel...g&SubCategory=
It shows that the P-51 battery is 9 cell=10.8V, I thought it was 8 cell=9.6V SORRY.
But my answer still stands, because I was also using the same props that I was talking about on 3 cell lipoly=11.1V
*** I think you need to keep and eye on the temp of the battery, full throttle runs are o.k. but keep them short for your battery***
You will draw about 15 Amps with the APC 6X4 Prop and less with 5.9X3.0 and even less with the 5.3X3.3
Choose the prop depending on your flying style. If you can use some throttle management (not wide open throttle the whole time) I would go with the APC.
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Make sure that your ESC has air flowing around it to help it cool down. Don't by shy about cutting some holes/slots to let in some air, also make sure the air has holes/slots for exit.
Consider cooling holes, vents and such for your battery too.
Gryphon