IF it were mine, I would run the rpm up high a few times fully loaded.
Then run moderately until 1500 miles, with occasional high rpm, but not high loads.
I also always change engine oil at 500, 1500 and 3000 miles, followed by every 3000
My logic is based on the following, (which can be found elsewhere with searches)...
You want to initially seat the piston rings in to the cylinder walls with the high cylinder bore pressure, AND then not allow ring lands to develop low in the cylinders by only running at lower rpm.
Only my .02 (and how I've broken in my PW, DSRT and HC)