roller rocker adjustment
 

I'm really stumped. After headgasket repair,W/rebuilt heads, I can't find any information on the valve adjustment for the roller rocker set up. This is a 2000 4.3 V6. Do I just torque them down, or adjust like old style hydraulic lifters? This is a first time working with roller lifters, and rocker set up for me.

Thanks in advance
Joe