They are a similar carb, not a bad carb at all (some people reckon fuel economy is actually better than a weber), but not sure how easy to come by spares are to come by. No reason why they wont work on a CVH with the right jets etc for your engine and its state of tune.
Cool dude cheers I may go for them. Some bloke had them on a 205 rally car. And is selling them for 80 euros lol