[Swifty1638]

vaccuum pulls in duluth works wonders.

Dyno break-in I don't feel is worth it at all, and isn't really doing anything much different then driving it on the street. What, ya gonna load it up on ramp rates on the dyno? Go drive up a hill. Gonna change the oil often too? strain it for any particles you can find. Since it's gonna be a stock rebuild, with used parts, and just new bearings (basic, freshened motor) I'd say that's not even necessary. Put it together..go easy on it, vaccuum pulls to seat the rings, and then tune/let er buck!