Valve Spring Installed Height Variation

That seems doable. I did notice all of the intakes on one head were shimmed .015" and most of the springs on the other were also shimmed .015". Of course, my dumbass didn't mark the shims on that one. It'll be a fun little bench project going through it all though. I'm just hoping I can get the valves to lap in. A few of the needed to be replaced.