Do not use a synthetic oil to break in your engine. Me personally i prefer to run regular 30 weight oil for about the first 20-30 min at higher rpm to break in the cam and then change it. I then go to a regular 10w30 for about 500 mi and change it again. The next oil change would be at 3000 miles. I would stay away from full synthetics for about the first 5000 miles or there is a good chance your rings will not seat properly. Just my 2cents