Interesting:
As i was google searching for the torque specs i noticed that AEBS has SR20 headstuds still listed on their sites. I thought they were discontinued? Is that the case?
I found the specs
Torque the studs into the block to 8-10 ft-lbs
Tighten nuts to 30 ft-lbs and then to 64 ft-lbs.
If your using a metal headgasket which im pretty sure you are, its best to do a couple torque then loosen procedures to ensure the gasket is fully compressed and that way you get an accurate final torque.
This is why i like the GE studs,
So for the AEBS you could do something like this
Tighten all to 30 ft-lbs, loosen all, tighten to 30 ft-lbs, loosen all, tighten to 30 ft-lbs, then torque to final torque of 64 ft-lbs. I would do at least 3 tightens to 30 ft-lbs again to ensure the gasket is fully compressed. You will never have to worry about them ever again.