the P8 as fitted to the large turbo Escort Cosworth (and countless other italian made cars and bikes) is also weber marelli, maybe you are getting confused with the EEC IV fitted to the small turbo Escort Cosworth (and millions of other Fords)?

you might find this site useful, and there are many more useful sites online if you search around

http://www.cosworth.hu/content/haszn...k/techtalk.htm