How much free play should new timing chain have?

Dana67Dart said
Did Chrysler use nylon covered timing gears like ford did in the 60s?

If that is the case remove them. SB Ford's of the time had them and I lost one at 160,000 miles just like the rebuild book said. I would never use one again.

I have used cloyes dual roller in the past no issues.
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Yes, the stock cam gear had nylon covered teeth. That's why I'm replacing the factory set before the nylon teeth start separating. I'm just worried now that I'll buy another new set and it may not be any better than what I already bought.