Building a new 505 With Callies / Mopar Performance Block

Mine are tapered 7/16 on my 572.
What wall thicknesses are you running and what kind of spring pressure are you looking at? What brand of pushrods do you have?
I am looking at 3/8 .120 wall now. I am waiting till I cut my heads .040 before I order pushrods want to verify the length one more time before I order them.