IIRC the studs are to be torqued to 21ft/lbs with some oil on the threads.
Now for the rockers, drop them on studs, then put the fulcrum nut over top of them. Pick a cylinder to set the lash on and turn the motor over until you see the intake valve start to open. Now as you're turning the pushrod with your hand, tighten down the nut until there you start to feel resistance to turning the pushrod. You can also do it by pulling the pushrod up and down until it will no longer move up and down. You're now at zero lash, you need to tighten the nut 1/4-1/2 turn more, then lock it into place with the locking nut on top. Turn the crank over until the valve you just set begins to open, and the other should be fully closed. Do the same for this next valve, then move on to the next cylinder. Don't worry if you don't get it right the first time, it took me like 8 times to do it (but it was 3 in the morning, lol). Good luck!