273 adj rocker stud and lock nut?? Where?

I'm waiting to get engine back from the machine shop any day now. I'm curious as to what pushrod I will need for Johnson Hydraulic lifters and my 360... stay tuned I guess.

If the Johnson lifters are the same as the stock ones, then it's also determined on what adjustment screws/studs-nuts are used. I like the crane adjustable studs and nuts...