They set the rockers. buy snugging them all down. Does that sound right to you? then they went threw the order and pre loaded the hydrualic tappets 3/4 turn.
If they did what you said in that order, it is NOT correct. The proper procedure is to have all the rockers very loose, run through the firing order and snug them up, then preload by 1/4 to 3/4 turn. I can't imagine and engine shop setting the valves that way, however.

Did you have oil pressure?