I was reading this thread and got concerned, I have a set of RHS heads from Hughes with regular Hughes 1110 springs, 1.440" OD. Hadn't heard you had to run the beehive style with them.
So I bolted up a set of the stock 273 style adjustable rockers and found that they cleared just fine. Not by a lot, but there's a visible gap. Of course those are 1.5:1 ratio rockers, and of course most of the stock stuff was actually a little shy of that, but they do clear those springs in case anyone wanted to know...