The proper way to deal with breaking in an engine is to well, drive it.
You can't do this in a garage for two reasons:
1:Cooling. Unless you have a silly huge fan, the thing will overheat.
2:Most of the seating takes place/happens when the engine is under compression while slowing down. Revving it in neutral doesn't get the job done.
http://www.mototuneusa.com/break_in_secrets.htmMotoMan's method is the proper way, IMO. You want to progressively wind it up it and let it wind down halfway, then wind it up a little higher, and so on until you're at about 2/3-3/4 of red-line, which is enough(3500-4000 for a R22E, for instance - no need to punish it). 20-30 minutes. Then change that oil immediately.
