The 360 that I'm building has a Hughes hydraulic roller that was in it when I got the engine with 2 blown head gaskets. I'll check the installed height on that one just for fun.
It is the 440/495 in the Charger that is getting a retro Hydraulic Roller from Comp Cams and with that one, I was told to set the installed height at 1.860, +/- .010. Now since the stakes are higher and now that I'm now aware of this, I can't just disregard the advice.