I am in the process of having my svt heads and cams fitted to my st24 but have a problem with the timing markings. the problem is that the front cams markings are not matching at the back of the exhaust cam. the cams are set at the correct positions 9&12oclock but they just dont match at the back. if i put the stock exh cam back it matches the int cam so what i want to know does it matter if it doesnt line up at the back of the cams. the rear head markings are all fine.