curious about valve lash setting/check

Did you remember to oriente the noth in the rocker shafts? I should be seeing the notch in The earlier picture you posted... but I can't see it.
The notch should be to the left and down.

View attachment 1715425400
no sir AJ, I did not, because I did not know to do this. don't know what you mean, could you please explain. and thanks