Shawn
AAC and ABC engines are broken in the same way. The short version is 1" less prop than your flying prop. At least 21% oil. Break the engine in at flight RPM and rich (hence the 1" less prop) . This is done on a test stand of course. After a tank of fuel, cycle it to near lean by pinching the pressure line to the tank. As the pressure drops the rpm will come up as it leans. About 10 seconds and a minute rich for 2 more tanks of fuel. Monitor exhaust oil for color and head temp closely during break in. If the engine is very tight at the top, warm the head with a heat gun to get it started. This is mandatory with any Dub Jett engine.

If you have any questions shoot me a PM.

Scott