HELP!!!273 rocker shaft and rocker install

Got the valves adjusted last night, am going to go recheck them tonight, no major problems, looks like everything clear ok. Thought I had a problem, brought the timing mark up on the harmonic balancer and the two valves I needed to adjust where on the top of the lobe, almost started to pull the timing cover, then turned the engine over until the timing mark lined up again and all was right, thought maybe I had misaligned the dots on the timing gears(it is cam gear dot at 6 o'clock and crank gear at 12 o'clock, correct?). One question though should all of the adjusters be about the same height? I have one that is considerably higher than the rest. I set the lash at .022, cam calls for .020 hot, somehwere on here I read add .002 for cold, right? I will reset when I get the engine warm.
I can't thank you guys enough!!!!!!
Aaron