What kind of power difference??

[REGGY5GT]

i was walking round my local scrappy today and spotted an old 480 es 2.0l in the very corner covered in brambles, now the engine hasnt been touched, i was just wondering if i was to get the cam and put it in my stock ft with richmod would it make much of a difference power wise and would i have to change the valve springs or would originals be ok, i know the best option is to get it reground but i havent got the funds atm, any help appreciated. thanks.

[TrixNFlix]

I have got an ep cam which i think is supposed to be from the 2 litre 480. Its thought of to be better that the 1.7 turbo cam which is seen as very restrictive.

[Haz]

its the cam from the engine code b18e or b18ep on the metal plate rivited to the engine, on the front, by gearbox. think its the inlet manifold that has 4 long runners in a U, Y shape