Slant 6 Vibration

Id rather see the black than the rust and coke I saw in my slants valvetrain when I got it. It looks like #2 may have been leaking into the water passage from what I can see, but a new head gasket is inexpensive (cometic excluded) and a new valve lash will be in order after the thicker replacement gasket is installed anyway. Save the drama until you get the new head gasket on and find out all the cylinders are +- 10psi from each other. RTV for the entire intake/exhaust gasket? Wow! ...and plug that EGR hole! the CA cutoff date for smog is still 75.