uh oh.
I followed a book on bb chevy's when I put the top half together because I had no prior knowledge. I used an oil squirter can and squirted it in the lifter side holes before dropping them down. then I tightened the rocker nut until the pushrod wouldn't spin anymore. The book said that after it wouldn't freely spin you should then put one full turn on the nut.
That's what I did.
Maybe mine are overadjusted.
It's tough for a new guy like me to find out how to do this kind of stuff because every time I start a new task I'll ask two or three different guys what the best way is. . . . and I always get two or three different answers.