Okay, I was getting ready to put my valley pan on my block and then do the intake install.. (383) Today I was talking to a mechanic friend of mine who said I need intake manifold gaskets put on the block first, then the valley pan...I was under the impression the valley pan took the place of intake gaskets and all that was required was to install the pan and then put the two hold down pcs. on the front and back. Also what kind of gasket sealer would be the best to use on the pan, and would you apply the sealer on the block as well as the top of the pan for the intake ? I've never heard of using both intake gaskets and the pan as well ? need some advice...thanks..