Adam, the 076 injectors are ever so slightly better in terms of the tolerances. It's so slight you wouldn't notice any improvements on power or economy over a set of the originals at the simulare milage.
Take a look here http://306oc.co.uk/forum/thread-5399.htm...=injectors
Take a look here http://306oc.co.uk/forum/thread-5399.htm...=injectors