OK head changed over went to fit carb. Wrong manifold!!!

Had a 32 34 DTML so had to get new manifold. Done that but the old manifold had a connection point for what seems to be the advance retard from the black box connected to dizzy which by the way has no vacuum. So question is do I need to connect this tube from the small black box (sorry for the lack of technical information) back to the manifold. Also need to change the throttle linkage as is is slightly different.
Seems to run and rev OK but been unable to road test yet as no throttle linkage.
Any advise very welcome.
Cheers, Tony
