oil leak from eddy intake

Where is the intake leaking ?

If it from a bolt hole get some Permatex thread sealer. This stuff works great for sealing threaded areas.

If it is coming from the front or back of the intake,or the water passages,then yes,use
RTV. Most people dont use the front and back gaskets for the intake. Just a nice1/8" to 1/4" bead of RTV,front and back. Then a nice bead of RTV around the water passeges on the intake gasket,and your good to go.