campag 9sp levers compatable with shimano block?

In theory no but it often works ok. Look at the CTC site and search for Shimergo for all the options. Or try Sheldon Brown but he is pessimistic. I mix all sorts as I like Campag levers but Shimano type hubs are cheaper and more widely availible.
Contrary to popular belief I find a bit of wear in the system helps no end.
 
I have used the combo with Campagnolo derailleur for a while... you get the all 9 speed range, the shifting is not super smooth (better with shimano chain, than campag) and there is a bit of grinding at the extremes of the cassette. I then invested in a shiftmate and it improved significantly... 35 pounds, as I recall
 
I never got it to work properly - but never tried the various "adapter" solutions out there.
 
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