Those Wright Cyclone engines were rated for 1200 HP each, and there was a "war emergency" turbo boost setting that was off limits for normal operation. It was rough on engines, but the power was there for short bursts of max effort flying. They could outrun some of the older fighter planes like the P-40 in straight and level flight.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!