caddy 390 valve question

can anybody tell me what the valves on a 1962 caddy 390 should be adjusted to..i found the firing order but i cant seem to find the valve specs. thanks

 

Are they stock? Cause stock aren't adstustable. If not stock what are you using?

 

i believe there stock. my buddy just got the car and the number 6 cyl is a little low on compression.

 

The 60 caddy with 390 I had didn't have adjustable rockers. Not stock?