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Q: RTV SILICONES FOR SEALING INTAKE MANIFOLD OUTSIDE SIDE-WALL on 1995 Chevrolet Lumina

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Could someone recommend me a good sticky RTV silicone for sealing Chevy GM 3.1L 95, lower intake manifold outside side-wall to engine block? GE RTV IS803, Loctite RTV, or Permatex?
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Thank yoy for reply. There is no gasket needed though, this is a lower-intake sealing without removing it from the top of engine block and sealing the ridges. It is a sealing at the outside side-wall between lower intake bottom and the engine block.
How are you going to seal it without removing it? Wiping RTV on it aint going to work! Figured you had this problem solved by now!!
The current recently-applied lower intake RTV sealant is not leaking quite a lot of oil. So, I like to try seal it from outside along the side-wall, with a higher viscosity (very sticky) RTV, which can make a thick RTV wall (throwing lot of RTV at the leak!). Some RTV like GE IS803 is stated to be able to seal vertical metal surface with sufficient thickness, but I never use it. So, I am soliciting for recommendations, Thanks!
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