Camshafts: What effect does increased lift have on performance?

66fs said

And if your ports flow the same at .450 as .500+ what are you gaining with the extra stress and clearance issues.

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Possibly more average flow.

If the heads flows the same at .450+ a .450 cam spends almost zero time at peak flow where as a .500 cam will get to peak faster and spend more time in peak flow, is it worth it ? depends on the build goals person etc..