I know to set the valves when the engine is stone cold but what is stone cold? Here in SoCal that is usually going to be around 70F. But how about lower Slobovia where Rick lives. In other words is there a baseline temp that is target. Is a 1000"th added or subtracted for some extremes? Does it matter if they are set in the AM or PM? This is how I spend my valuable time. Worrying about trite . No wonder I never get anything done.

Don't worry about it. It doesn't make that big of a difference.

...and a XANAX may solve the other issue.

For Rednecks only, they must be set @ 3 AM local time after a couple of cases of Lone Star or Pearl is consumed.

If this factory procedure is not followed, the engine will blow up.

I think Pearl is out of business. And Lone Star is green beer. You need to lick your to get the taste out of your mouth.

AMEN ....

Actually, the factory manual says let engine cool for 4 hours after running prior to adjusting valves as I remember. OAT would then be insignificant unless you were in Iraq, Iran or Death Valley.

With steel push rods, set 0 valve lash with the engine at operating temp. And ahh, good luck with that.