How much free play should new timing chain have?

famous bob said
I`m running the 9 keyway rollmaster , .005 under for line honed engines, was so dam tite almost couldn't get it on , changed cams later on , still tite !

I made that mistake ones (wasn't line bored) could not get it on the Crank!!!!!
It's amazing how only .005" can really tighten things up.