Cleaned the heads up (looks like one cylinder ate something it shouldn't have), pulled 3 busted bolts, cleaned and lapped the valves, put the 100K mile LS2/6 valve springs on (with new seals, retainers, and keepers - all left overs from the TSP heads on the wagon), and set them in place on ol' Quagmire over some stock MLS 4.8/5.3 gaskets. I am reusing the stock TTY bolts - cleaned the threads; and put ARP lube on the threads, under the heads, and on the shoulders as it makes torquing them smoother. Right now they are sitting at the initial torque spec until tomorrow(?).
EDIT: I meant to add that I broke all of the sharp edges with a smooth tooth file before sanding the decks with 220 grit and WD40 - it prevents the sandpaper from catching, and will save the head gaskets from being nicked if you lay the head down funny. I also took the edges off the combustion chambers with 220 grit - beats having hot spots.
With any luck this engine will end up in an '86 Camaro Natasha and I are going to look at in the morning; she wants to start racing again.