Okay, I sprayed the entire area down with brake cleaner really good and got it pretty clear of oil residue. I then took the car for a 30 minute drive and reinspected it for an exact leak location. The oil appears to be exiting the engine through the seam where the upper/lower timing covers and the cylinder head/engine block meet. However, the head gasket itself seems to be weeping oil also.

Question: I believe I'll replace the rubber horseshoe gasket and reseal the timing cover tomorrow evening. Is there any harm possible from re-torquing the head bolts to factory specs while I have the timing and valve covers off?

Thanks,
Ted