Not too bad; but, #6 is kind of an aggravation. I watched it on YouTube first. I turned the engine to TDC, etc. using a socket and ratchet on the crankshaft. Very carefully I set the intake to . 010 and the exhaust to . 020 like the guy on YouTube. As I was putting the valve cover back on, I noticed that plainly printed for the whole world to see, it said intake . 010 and exhaust . 026. Well, I got pretty good at it before it got too dark! Good luck - ED