re the 105 question- it appears to mean different thing to different people. Terry Prince told me that all of his cams are 105s. In this case the 105 degrees is centre line measurement between lobe centres, giving 210 degrees peak to peak exhaust to inlet spacing ( cam turns half speed to engine) In his autobiography, PEI discussed development of the MK2 cams stating that he altered exhaust closing and inlet opening angles from the MK1s to give "105 degrees of overlap" So these are two totally different 105 degree measurement, almost opposite in fact since if no other changes are made to the profile then widening the centre line measurement, say from 100 degrees to 105 degrees decreases overlap, whereas increasing the overlap from 100 degrees to 105 without changing profile, can only be accomplished by reducing the centre line measurement.
A Vincent owner on the Norton site mentioned that he had Godet install 105 cams in his Bespoke Egli, wit the inference that the 105s were a much hotter than stock cam. First off , you would have to know what the 105 refers to. If it refers to centre line , then that measurement on it,s own indicates aa milder cam that stock MK 2