Thanks to everyone who responded.
The engine I'll be adjusting the valves on is an LS6, stock rebuild, using a CompCams regrid of the original LS6 cam. (I have the cam card and can provide the numbers if it would be helpful, but the card is at home.)
If I understand the info given by napa68 about the adjustment for a "30-30" cam, the procedure will also work with my engine. I'm guessing the LS6 cam does not fall in the "30-30" category (please correct me if I'm wrong), and shouldn't require the "30-30" procedure, even though it would work.
I was going to follow EOIC method described by VintageMusclecar. It sounds like it would accomplish the same result (providing the LS6 cam isn't like the "30-30"
. It seems a bit more friendly for those less experienced.
Thanks,
Dennis