skunk2 camshaft id???

does anybody know how to identify skunk2 camshafts???
my intake cam has a m2 stamped on the middle of it and two lines on the end of the cam>>>
exhaust cam has a m on it…and also has two line at the end distrib.side…

the line are on the end where it sits under the last cam cap…

i think they have a 88 or 888 etching on them. but, i think it depends on the stage. i think stage 2’s have what i said above

thanks ill check it out