Help! Wiped cam lobes? - Video inside

yeah, that carbon build up is really kicking me while i'm down. I was able to use an ice pick and a screw driver to get a lot of it out using a shop-vac for local air. no way i'm going to get all of it without some serious chemicals or power tools though.

So how clean do the mating surfaces really need to be? I've been scraping and scraping and rubbing it with an acitone soaked rag but some stuff will just not come off. It looks more like staining? Nothing feels 3D, for example there is a faint line where the old intake rubber bead used to sit that I can't get rid of and a dark stain around the carbon port on the mating surface.