I think I got on the lifters. If they are pumped up as in an already running engine go to zero lash and no more. For dry lifters it is ok to go to zero an then add the 1/2 to 3/4 turn. They will then fill with the appropriate amount of oil without damaging any thing.
With that new knowledge, I set the lash on my 350 in my Chevy pickup to zero and then 1/2 turn. Should I go back a set it to zero and leave it? I don't have any bent push rods and it runs fine but not all that much power.
BTW Thanks for the information It is always good to get information like this that I have never read anywhere else. They don't tell you the correct method with the cam instructions. All I have ever heard was zero than zero to 1 1/2 turns.