Does this prove David Vizard's 128 lsa formula ?

Killer6 said

Hence the formula, it is the best ballpark for guys running old iron, not shooting for a championship... it's just not the last word's all.

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But that's not how DV sells it, he always brings up the 1% of engine builders that gets 138 + lbs-ft per cid and how he's in the 1 percent largely to due to his system. I have no problem with peeps using for ball park, I would use it for ball park, and maybe it does get close to optimal but there hasn't been any evidence that I've seen other than narrower lsa generally gives more mid range torque.

Plus it only really gives lsa spec and you suppose to guess the overlap you need and figure duration from there, for the system to be complete he should have a way to calculate needed overlap.

I'm not trying to discredit DV I would like for his formula to be true or at least close enough, but until I see evidence or strong indications that it is I'm gonna take it with a gain of salt. But overall I like DV approach to building power for the street.