So, as part of my refresh, I decided to replace my ancient Crane Golds. After some consideration, including the premise that they're made in the USA, I purchased a set of PRW rockers. In the end, this also necessitated a switch to new beehive springs. Now the engines all assembled and ready to bolt up to the trans and drop in. Just for the heck of it I put the dial indicator on the head tonight and measured up my actual valve lift. I'm at .513" net valve lift on a .575" roller, at .020" lash. With 1.6 rockers.
Wonderful.