Quick valve lash questions...
mine at .020 sounds like a slant 6 that was never taken care of
Exactly the same here but with flat tappets at 3/4 turn preload.
some of the lifters don't seem to bleed down
I had the opposite problem, my lifters would bleed off completely in a matter of minutes. I ended up backing the rockers completely off, pulling the distributor so I could run the priming rod until the lifters being adjusted were rock solid, then adjusting the preload starting from the point where I can feel the pushrod getting tight. Before this I was trying to judge when all up/down motion was out and calling that zero preload but that was wrong wrong wrong apparently. When I was finished none of the pushrods would spin when I had the lifters pumped up. 90% of my valve noise is now gone.
The lifters still bleed down but they pump up with just a little extra noise at startup so I will just have to live with that.
I've still got a little bit of tapping but am unsure if that's caused by a few pushrods that are marginally long enough so I've got a set ordered that is 1 turn longer that should take of that concern so if it's still noise after that it'll be an exhaust leak.
Of course it seems like everything I've done to this car has been at least 3x as difficult as it should have been.