Fresh engine, wiped cam? Tick? (new pics added)

at this point, back your bolts out until the pushrods will rattle a little when you wiggle them...in other words, not seated snugly...then 1/4 turn of the bolts at a time, check for the pushrods to "seat" in the lifter and rocker.
at this point, measure the gap between the rocker shaft and the pedestal.
It should be very little...less than .050" for sure.

.050" is 1/2 of 1/10 of an inch