I have fmf fatty's, milled head, vito's 4 degree advance key. I bought my stock milled head already done from Cascade Innovations in Oregon $35.
jetting: 27.5 pilots, 320 mains, LRD needles 3 notch from flat end. 2.5 turns out on air/fuel screws. Of course that is for sea level sand riding.
Hope that helps.