Valve lash compensation

I'll let others chime in but look usable to me
chevy rockers are longer than mopar so being off to one side is to be expected
nice pic
can you shoot from the end up , half lift, full lift- you take nice pics
at half lift a machinist rule sitting on the retainer should run through the retainer about the same height as the stem is above the retainer AND T the live from the center of the shaft should go through the pin in the nose of the rocker
the two lines should be parallel
etc