adjusted rockers now surging

ok Im getting a new motor running. I adjusted my rockers because I was having no power when I gave it gas, but while I was in the process of doing this I noticed a incorrect value in my computer which caused the problem. Anyway I put it back together and now I have a surging problem. Could my rockers not being adjusted optimaly cause a surging problem? I checked for gasket leaks on intake and made sure everything was hooked back up. One thing I noticed when adjusting my rockers is that on a few of them when I would turn the rocker nut an additional 1/2 turn past zero lash there was no resistance. I assume this was because the lifters had bled down. would this cause those lifters not to be adjusted properly? thanks

so dont worry about the pushrod? I mean I would turn the nut until there was no more play (up and down) in the pushrod and then turn my half turn and lock it down.

yes, i did notice that it was a bit noisier..and it would stall or come close to it when letting off the gas and pushing in the clutch to come to a stop. I'll try to adjust them again. maybe I'll run it first and then immediately adjust them. last time it sat for a few days before I adjusted them.. maybe causing some lifters not to be pumped up...if that matters?....