Hey Joe....you wanna argue radials vs. inlines.....vs. Vs? The P51's aero played a bigger part than its engine. You couldn't stay on boost long, before you grenaded the thing anyway. I've read a few pieces about using the alcohol as a cooling charge, instead of fuel...lots of potential there. P.S. P38's were blown till their head bolts trembled......same deal....you got it for 32 seconds.