The advice is a general advice given by Kent, for all it's cams, back in the real world, just ensure the cam/s have a good coating of oil/running in stuff supplied by Kent prior to turning over, then give the key a few goes to no2 position to ensure the rail is fully primed, then spin over with the plugs out till the oil light goes out, a alternative a lot do is to remove the dizzy and using a drill and long allen bolt spin the actual oil pump drive shaft from the dizzy to build the pressure first prior to starting.
As it's a new cam no doubt it will be coated in a phosphur coating anyway from piper, this is to stop scuffing during breaking in.
If you want to be doubly sure prime oil prime fuel as above then start and hold at 2000rpm.
If it was old used cams you could just safely spin over with plugs out to get pressure up and start, but the cam nose takes a pounding at idle, that's why I always use reprofiled cams and never new.
tabetha