Ke-jetronic was ok when it was new, but things soon went efi, and remain so today 20 years on! consider maybe converting it to efi with fiesta turbo parts, and programable management like megasquirt or similar, it give you so much adjustability and scope for improvement and further modifications. Ive megasquirted four cars and had great results from them all. Depends if its a car to keep or not, just thinking incase you start spending lots of money on the old k-jet system!