Dave,
That plane looks familiar.

I think a close-up and it would be even more familiar. [sm=thumbup.gif]
Once you get the throws toned down, you'll like the color better. [sm=bananahead.gif]
I think I have some APC 9.5x7 Pylon props here. They would work on that setup. If it doesn't get up on the pipe, just trim the tips down to 9.25" or to 9". Remember, there are no prop limitations in RCPRO Warbird Racing. I wouldn't go smaller than 9" on that airframe though.
You have to get used to the tuned mufflers. You might not have gotten it fully on the pipe yet.