hello, im sure this has been posted before but i cant find a straight answer, theres two many different answers and pictures to be sure. My problem is i am rebuilding a 2004 yz 450 and im putting the cams back in but they were never marked for timing. my manual shows the two timing marks while engine is at tdc but i cannot get the timing marks on the cam to line up perfectly with the head. the timing marks are a little high on the intake cam and if i turn it back its just below the top of the head. my question is do i want to go a little high of a little low with that timing mark. also i read about a pin count but theres 3 different pin count numbers floating around what is the correct pin count on the chain for a 04 yz 450. any info would be greatly appreciated. cheers!