Hotrod also did a build like Patrick mentioned but they used BB chevys with small valve heads so shrouding would not be an issue and they did correct the R/S ratios to be equal and they even ran the dyno on a steady state pull (stop RPM from going up then check power) so the different bob weight would not effect it, the result less than 1% differance any where in the curve, pretty much squashed the bore/stroke tq/hp debate.

That is not the only test I have seen either but it should be easy for someone computer savoy to find a link to bth articles.

Can any one find where I said a 440 was "special"?

I only said it can make a tad more hp than an equal 413 and for less $$$ Now that I think about it, I never even said a 413 was stupid or dumb