EQ heads, Chevy rockers and what studs?

I have ARP 5/16 to 3/8 conversion rocker studs and they seem to be the wrong length with Comp Chevy roller rockers. The lock is way too far down once proper lash is obtained. So I’m curious of those you who have been down this road:

What rocker studs and 1.5 rockers have you found that WORKS?

Thank you!
May as well ask; are you running stock Magnum length valves?