I'm curious to what eaton supercharger you are talking about. Is it from a Cobra engine? I believe that is the only factory (IE: Eaton) supercharged 4.6 there is. In the case of the cobra, it is a DOHC engine, and the 07 would be a SOHC engine. Let's just say it's possible, and might even be sized suitably for the engine, but it won't be 'easy.' If it is a Cobra setup, you will have to make provisions for the intercooler and heat exchanger system, which won't exactly be a simple thing to do.