I think this was discussed many times when it was established that the only difference re SVT cams was the overlap, by about 4-6 degrees up Vs stock.The 'Presta' 'coposite camshafts make it easy to do tis as the components are 'splined' to each other before a broach is drawn thru the hollow shaft expanding and locking the part to the shaft,same lobes etc as stoc just put in at more overlap cam positions before expanding/locking the parts....pity they dont come apart as easy!
