I just did some light reading and most say the s-cover helps more in higher boost situations, which I do not consider 10 psi high boost. In my mind I would switch to new IC piping and to the thermostatic plate, eliminating filter relocation and 2 oil lines. If the piping length is about the same and stick with an e-cover I cant imagine a re-tune would be needed, this is the route I think I would go.
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