Good luck with fitting all that into the engine bay of a Cougar.
Suggest you join here
http://www.newcougar.org/ as there is a lot of information on here about forced induction. A lot of people have have gone down that route as in the USA and Europe Ford release a 4 cylinder version.
Let us know how you get on.
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Owning a Cougar is like owning a Super Model
Good to own but "High Maintenance"
2000 Model Eibach Cougar (Auto) - Now dead & buried