How tight to set solid lifters

Newbomb Turk said
That makes no sense Mike. The heads and block grow with heat. Just like with aluminum heads but not as much.

Edit: I always forget to mention engine temp matters. And engine at 160 degrees won’t grow as much as an engine running at 195-200.

You have to check hot lash at the temp you are going to run.

Think about it this way, If the valvetrain wouldn't expand with heat, there would be no reason for valve to rocker clearance. The way you are thinking, you could set them at zero and have no issues. The lash (clearance) is to make up for expansion at operating temperatures.