Yeah....
As far as rebuilding goes... first what's your budget???
I did mine for about $2500. Did the work myself and did a LOT more than the motor.
Uh, also got most of the parts for the bottom end from RaceEngineering.com. Basically all I did was race bearings (clevite rod, and King Mains), Shaved down the oil pump, and replaced the metal oil line. MHG, and ARP Headstuds.
One thing to definantly do... Take it to a machine shop, I got the Crank, Block, Pistons, Rods, and the head (lapped, and 2-angle valve cut) for around $165 which is a steal. I got everything checked out and whatnot and the motor runs fine.
Oh yeah, also consider port matching your intake... It's a little bit, but the less air restriction the better.