I would never bet against blykins having the absolutely correct engineering answer.
But, you have to keep in mind, that you are paying for "the Cobra experience." I have driven more than a couple of cars that are way faster than my Cobra, but I have never driven a car that
I think and
I feel is faster than my Cobra. I firmly believe that if Brent pulled my engine, replaced my crank with the 4.25", put it back in, and tuned it exactly the same way, that it would have more power and torque when put on the dyno. But I also believe that I would say
"yeah, I know what the numbers say, but the other engine just seemed faster...."