lobe separation is degrees from the centrline of the intake lobe to the centerline of the exhaust lobe. now i do agree that u can change overlap with duration. but if u take the same lobe and move either centerline then u are ganna change overlap and lobe separation. yea ur right i did miss ur point earlier was a whole lot of numbers and not the best explanation. there is a lot that can be done with camshafts. and unless its a serious race engine some of the small changes we are talkin about sometimes don't make much difference. but again some of us like to squeeze every little bit so the little stuff does help. anyways my bad for bein rude i just had to get ya back a little for bashin my heads........
