I am afraid that two things would likely happen. One, since nearly all WW2 warbirds were taildraggers with the exception of the P-39, that when trying to run up the engine just against wheel brakes the airplane would just nose over and destroy an expensive prop. If that didn't happen, the wheels would almost certainly just slide when high power was supplied.
A while back I saw a video of a plane sitting on one of those big wooden starting stands. The stand was about 3 feet high or so, and had wheels on the front two legs, but not on the back two legs. It had two wood vertical uprights that the wing went up against. The guy starts up the plane, steps back from the stand, and adds power. Incredibly, he taxied the airplane AND the stand it was on to about 40 feet away. Even more incredibly, he then added rudder, turned the stand around, and taxied it back. This was all on a grass field where it would be tougher to drag the stand than it would be on pavement.
I just looked for half an hour and can't find that video. Anyone else here seen it?
EDIT: Never mind, I found it. I was wrong, it only has one back leg without a wheel that gets drug, but still....
Check it out:
http://www.youtube.com/watch?v=dGfvi...layer_embedded
AV8TOR