oil in engine threads.

Filburn,

Check out this link.
http://www.arp-bolts.com/Tech/TechInstall.html

There are many factors you need to consider before you torque down head bolts. They must be lubricated properly before you begin to torque them down. I would get the oil out of the holes and spray some brake cleaner in the hole and blow out with air. Then get the proper lube to do the job on the heads.

As far as the oil pan goes, I would clean out the holes with brake cleaner. You might want to use some Loctite on them.