We have several guys at our field that pylon race with war birds myself included. We all have planes that turn in the 125's to the 148-150's on a daily flight. We are running YS 63's thru YS 140's with hot fuels at times. And Yes for all the non believers, these are level passes clocked with a $1400.00+ radar gun. We fly P-51's, Spitfires, Yak 9's, and Sea Fury's. As for the Fuels, they are glow fuel engines @$25-$30+ a gal. We had one guy at the last race up from arizona that was running in the 160mph+.
As they say, The sky's the limit!!!