Here are some things the engine shop that did my dads engine recommends (they race build engines).

Oil changes..
1. after initial start up and warm up (about 20 minutes or so).
2. after inital 20-50 mile run.
3. after first 200-500 miles
4. after 1200 miles.
5. at 3k miles, then normal 3k mile changes.

Just use the cheapest dino oil you can find for the first couple changes, then good quality dino until 3k miles. Whatever you want to use after that.

They also say to get on the throttle quite a bit in the first 20-50 miles to seat the rings. Dont thrash it but give it a good run. The first run out of the garage should be for 20-50 miles, the amount of time it takes doesnt really matter.

They actually pulled his engine and opened it up to check all torque settings at 500 and 1200 miles.