[BillK]

Dave,
A couple of guys have recommended milling the heads. You did not specify the year of the Goodwrench engine but most of the late model heads are pretty thin on the deck and milling them more than a clean up cut is asking for trouble in my opinion. On some of them, milling them .030 can actually lead to the gasket not sealing in at the "scalloped" shaped cooling holes.

Its ok in a race engine where you are trying to get every bit of possible power and longevity is not a real concern. I think you want to put this thing back together and drive it another 100K miles ...... if so I would just use the Fel Pro stock replacement composition gasket and don't worry about what little compression you might lose.

Just my opinion,