hello i own a 1991 escort cabriolet 1.6 efi as im sure anyone who has owned one knows how slow they are in standard form so my question 2 anyone who can help what engines will go into and run on the origanal wireing loom ie will z tech or the 2.8 siera lump go in im pretty handy with cars but wireing is not my speciality so any feed back on what will and/or wont go in to my cabby greatly appriceated