There are 3 marks on the FW for cam timing. Use the middle mark only for L or R cam timing setup. Ignition timing marks should be obvious. I painted my 20* & middle cam marks with a silver paint marker for clarity. Any light color paint will do.
Yup, the split where the VC meets the cam tower is a good reference for cam sprocket lineup.
Those videos kinda got buried in the last forum update I guess along with some great old threads about Frankensteinian transmission mods, etc. Time for new bookmarks.