there's company in england (i know bit far 2 go 4 a carb conversion) who can make a custom inlet manifold 2 make the zetec run on bike carbs apparently this conversion is the nuts
cos the bike r designed to run over a much larger rev range it makes the engine very torqi low down & pulls all the way through the rev range but keeps the engine nice and drivable apparently the conversion is quite easy but setting it up 2 run correctly is mustard (sorry very hard) but it works out a dam sight cheaper than turbo or supercharging (although i do believe its a lot cheaper in yr country)
anyway with the conversion alone with no other engine mods (except filter & zorst) b looking at 170/180 bhp on a 2.0
inlet manifold retails at �£176 and the bike carbs can b picked up in scrapyards over here 4 about �£30 i'll give u there phone no. BOGG BROTHERS 01944 738234 im sure there b happy 2 answer any questions
the conversion is also compatible with the 4 cylinder duratech