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The Camfather (Ed Iskenderian) says it better than I could.....
Tech Tip - 2003
Longer Exhaust Duration: Is this really necessary?

Most stock camshafts from American production V8, V6 and 4...

I made several changes after I first wrote it, so go back and read again. :3dSMILE:

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You're on the right track. Lift has nothing to do with lope, it's all about lobe separation angle and the timing events of the intake and exhaust valves.
LSA is figured this way: If a cam is cut...