I was told to set mine cold @ .022 all the way across even though the spec card says 28 and 30 hot. I talked with 2 guys I know that own their own racing engine service here in Memphis that used to do R&D for Joe Lunati and they recomended doing it that way.
They also said all that monkeying with tighter and looser valve lashes and using different ratio rockers trying to eck up an extra 1 or 1 1/2 hp is just plain horse hockey, there is just not that much hp to be made at the valve, better off spending that time and money else where in the motor. >Cp