On paper gaskets, I still prefer a gasket dressing, such as Permatex High Tack. The RTVs are preferred where the material provides the seal. Either will work, and in either case, a very thin coat on the paper gasket is all you want. The gasket is doing the sealing.
The attached files show a visual selection tree for the Permatex products, just FYI. Of course, there are other brands - just thought the decision guidance is laid out in a nice fashion in these. FWIW, they also have a similar selector for Thread Locker (Loctite) products, here:
Thread Lock Product Selector
