Maybe this will help...

Look at these two camshafts. See the sharp pointed lobes on the first one? Imagine it having 8% more lift than the second one with it's big fat lobes. Can you see that the wide lobes of the second cam will hold the valve open longer?





Who cares about a tiny bit mroe lift when you've got that much more area under the curve?


Oopsie! I didn't see Derek's posts. I was just hoping a visual would help.