I'm sure you have thought this through already, but just in case I'll say it anyway; be sure to do the valve lash as soon as you put it together as the material you are removing from the head is two or three times greater than the clearance you had. I always ran best with .005 on intake and .007 on exhaust, setting the valves on a warm engine. I know that is tighter than what Toyota calls for, but hey, I liked it better and there were no side effects. Just my $.02.