Intake Manifold Gasket Orientation

If by "ridges" you mean the blue silicone rings, they go towards the intake manifold. (The gaskets do specify which side goes toward the head if you look at them).

Use edelbrock gaskacinch or permatex high tack on the head side, it will seal the gasket and keep it aligned while you place the intake.
 
Thanks for the reply. Great pics on the web page. This is the gasket I'm using, it doesn't indicate anywhere, I assume that the side with the dark, blue stripes goes towards the manifold?
 

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