First problem is racing dyno’d. Even if it is the same dyno, there two different engine built the same way which does not guarantee the same results. Then there is “that 15 years ago” comment which is the big key that fell on your head pretty hard knocking the Sensibility right out of it. That’s 15 years dude! 15 years! Crap wears out. It wasn’t a brand new engine. Even if such it was, small changes are sure to be abound.
Such a pessimistic view. I have no idea when you get off saying he’s trying to sell some thing. It’s what he used. Nothing more nothing less.