If you are running double springs pull the inside spring out if not, then don't worry about it. Keep your RPM's at 2000 for 15-20 mins at least. Shut your engine off, change the
oil and put in a new filter (check for any debris in the
oil and also your filter). Put in more
oil and a filter and start it back up and let it run at about 1000 RPM for a little longer. Remove your filter and cut it apart and check for any gold or copper flakes. Put on a new filter again and top off the oil.
Don't worry about anything you find in your oil that isn't metallic or shinney. It probably would not be a bad idea to pick up some of the GM solid lifter cam breakin addative ($10/pint) to run in your car for the first 300-400 miles.
Clois