Here are some previous threads on the subject that are worth looking at:
http://www.fordbarn.com/forum/showthread.php?t=3427
http://www.fordbarn.com/forum/showth...?t=3920&page=2
I ran my engine with varying RPM's over the first 250 miles and tended to run it on the harder side (up and down hills) as opposed to gentler to ensure the rings seated properly. I'll let you know in 10 years whether it made a difference of not.
Good luck.