I have done this when I changed heads from OC to CC and installed the Hall "Show and Go" package.
The intake manifold gaskets go against the heads. Use the blue tack provided by the Fel-Pro kit. I used the neoprene end seals together with the silicone dabs in the corners of the ends. Metal turkey tray goes on top (no trimming required). Then torque down the intake manifold (I used an Edelbrock dual plane that came with the Hall kit) on top of the metal gasket. Toque to spec. - No problems. I did not have splitting neoprene seals etc. the intake manifold was in place for 12 years.
Now my engine is tired so I am changing the whole thing out.
"andriyko"
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