That stretch of the Wensum is not the Norfolk Broads mate.
There are a few carp in the Wensum all round Norwich just wait till the Close Season whack on the polaroids and get walking:)
As for carp in the Norfolk Broads have heard of a few caught but given the size of the Broads system I would not say they were prolific, but if you have enough time on your hands and a good boat to get about then good luck.