To set your valves you should try to turn your engine the least that you can. You don't want to remove all your cam's pre lube.Take your time it is very important to get it right the first time.I have a S-A workbench book that I use it has the sequence in it .It's called How To Build The Smallblock Chevy , it's readily available at bookstores I highly recomend it. This way you can do it all yourself.I have a whole collection of these book's .The memory isn't what it to be.