lifter tick

i am going to adjust my valves soon and i’m wanting to know if i should do it while the engine is warm or when the engine is completely cool. i see LOTS of different things on the internet.

HELP! First I'd like to at least claim to have searched the entire world wide web to find the answer to my current problem. I replaced the head gaskets, lower air plenum gasket, push rods, rocker arms, valve cover gasket, header gaskets, and for break in threw some 0W-20 and a new oil filter...

This form has helped me in the past and I would appreciate any help with this issue. I recently spent 2k on changing my timing chain, timing chain cover, water pump, fan, and fan clutch. The next day I noticed a faint ticking noise coming form the bottom end of the motor. It is hard to hear...