[nkaminar]

Use the metal manifold gasket, as mentioned above. Use the concave washers and toque the nuts to 55 ft-lbs. Bring the torque up in 10 ft-lbs increments. Re torque after initial run and when you re torque the head nuts. Use antifreeze on the studs and nuts, which goes for the head studs and nuts too. Finger tight the studs.

I have had the best luck with the Best brand graphite head gasket and the copper spray adhesive.

For the rest of the gaskets, I use the paper ones with a very little bit RTV silicone. I very light film of oil on the surfaces will keep the silicone from sticking and makes disassembly easier. The old time racers would use grease as a gasket sealer as the engines were disassembled after each race. I do not use a gasket under the goose neck (water outlet), just a dab of silicone RTV. The gasket here can crack the goose neck ears. The pan just be flat. If cork gaskets have been used in the past, the bolt holes can be deformed and must be hammered flat.