Richard Holdener to test the Piston Reversal theory

Supposedly, yes....but the argument rages on about any power advantage. I've heard of it, read it and seen people do it for so long, you kinda have to wonder if it's not true.
Yeah, I read it in the Mopar Performance book years ago and have no reason to doubt it, but I’m on the fence about now lol. IIRC, Uncle Tony said the power gain won’t show on a dyno test, but would in a car, and Richard says if it’s true, it WILL show up on a dyno because that’s what a dyno is for. Kinda makes sense lol.