This info may be of interest since your engine has not been run on a test stand, so the run-in (and break-in) are up to you.
Run-In vs Break-In:
Ref:
https://www.continental.aero/xPublications/xService Bulletins/Experimental PMA/SIL012/
"III. RUN-IN vs. BREAK-IN
Engine overhaul shops (and new engine manufacturers) typically run-in all engines for a period of one to two hours prior to release for installation in the airframe. However, run-in was never intended to be a complete break-in. The objective of the run-in is to:
1. Verify the engine meets rated power specification
2. Correct any oil, fuel, or induction leaks
3. Check and adjust engine fuel system
4. Check and adjust engine oil pressure
After run-in, the engine is released to the installer who provides the airframe, baffling, fuel settings, and all aircraft interface considerations. Break-in is not complete until the engine oil consumption has stabilized and many hours of operation have elapsed."
Mahlon (Russell) has published engine Run-In and Break-In instructions in various places on the 'net, including VAF. Here is one:
And Mike Busch's presentation on engine Break-In: