Engine break-in after initial run Options

[Cevan]

I've searched here and at other sites for engine break-in procedures. I've done the cam break-in and the motor is now in the car with fresh 20-50 Brad Penn and a new oil filter. Valves have been checked. Fingers crossed.

From what I've gathered, most recommend warming up the engine and then doing a series of fairly hard accelerations under load followed by de-accelerations to help seat the rings, and in between, no sustained rpm driving. Some go as far as recommending you drive it like you stole it and others (Aircooled.net) say drive it easy for the first 100 miles.

I also tried to determine when best to change the oil. Do I need to change it at 100 miles and then again at 500 miles (and then every 3000 miles thereafter)?