Reply to "Theoretical question. Hydralic roller vs solid roller"

I am only partly kidding Doug. You are the only one I can count on to answer my questions. I know to other people my questions may seem dumb, but I can always count on you to at least try to answer.
I have put a new engine in a few years back and I saved the CC heads off theold engine hopeing to get some of my lost horsepower back by putting them on the new engine, someday. Well they have those hand grenade valves in them so I have to get new valves anyway. So since I am getting new valves I may as well get really good and light ones so I can rev the engine a little higher since just putting the heads on is only a eight horsepower increase. I know I lost way more than eight, I can tell by the feal, So if I can get a few more ponies via high revs, well maybe it will be good enough.