campag chorus chains on shimano groupset
 

Anyone used 9spd chorus chains on a 9spd shimano setup, any issues. They are 114 link while ultegra chains are 116 link? is the shifting ok?

The number of links depends on the size of your cogs and rings, and on the chainstay length. The park tools website has various ways of determining the number of links.
There is no point using an expensive Campy chain in place of an expensive Shimano chain, when you can use a Sachs/Sram chain.