This weekend I am going to cut up an old set of valves, drill and tap the head portion and weld a 1/4"x20 tpi bolt to the stem to make some adjustable length mockup valves for my Victor heads, so I could mockup the rocker arm height for the max wedge rocker arm blocks. I just need to check if my old valves (from my B1 B/S heads) are 11/32" or 3/8"?

Be careful using the rocker arm shims. I'm not sure if that is why I split the center rocker stand on my old set of victor heads.
I will say this new set looks like a better casting quality than the old set.