i have all my parts in. i just installed my heads. i have hydraulic roller lifters, the correct pushrods, and roller rockers. the engine has not been primed and the lifters have not been pumped up. i have conflicting tips from people. one person said i should tighten the rocker arm till 0 lash then crank it one half turn.. then someone else said i have to adjust it warm.

Try reading this good luck.
http://www.cranecams.com/?show=techarticle&id=2

Good article, and exactly how I have done it for decades

I would suggest checking your pushrod length also.

And last degree in the cam, if you haven't.

Good luck with your build.

thank you so much that article helped alot. just what i needed. you know when you are assemebling this stuff you can loose sleep if you are not 100% sure of yourself.