If for ATX on these even 'one notch' can be too much, but really a worthless term as it in no way describes the cam timing, just like the old school '3/4 race' or 'full race' used in the '60s. Silly terminology that means literally nothing, it only shows you how truly engine smart the talker is. Numbers brother, it's all about the EXACT numbers. Anything else is for those that can't build properly.