This is the process we follow. Start motor, run between 2000-3000 rpm for about 20 minutes. Dump the break-in oil and let motor sit over night to cool down. Add standard oil, warm up motor. Shut off and let sit 45 to an hour to heat sink. Start motor and get to proper oil / water temp and then to a base line pull to 6-7/10 of rev limit. Check things and adjust tuning as necessary and then keep upping the rev limit on the dyno. Most engines we run have between 10-20 power pulls, which is really in 10-20 shifts. Let motor cool down and check valve lash and do a leak down test. By this time the motors is either broken in and ready for the races or is junk. There is no middle ground.
