Idiots guide to valve adjustment on a poly?

Can anyone tell me how to properly check and adjust the valves on a 318 poly. I have never done a valve adjustment except on vw bug and that was about 12 years ago. I know I follow firing order getting #1 at TDC on the compression stroke and then do I check intake and exhaust at the same time? And where am I checking it at. Another stupid question but I'm learning.

David
Author: merkfalc