Thanx to everyone who responded to my question. The message I get is to run the engine on the rich side, and make sure the RPM'S aren't too high. Above all, DON'T let it run too lean and thus, overheat it. Do this for maybe three tankfuls and mount the engine on my plane. After that, the rest of the run-in can be done with normal flying and a slightly richer mixture than "optimum" for a few more flights.
I really appreciate everyone's input.

Jackster