[Mgs] Flickering MGB lights

[W. David Houser]

Listers,
Got in from an evening club meet and noticed on the way home all my  
lights, interior and headlights, started to flicker. Since this was  
the first time in a long time I've had the car out at night, I  
wouldn't have been aware of the  problem.
A ground getting loose somewhere?
This is my 67 BGT that I have an alternator running things as I have  
halogens, A/C and FM tuner with CD player in trunk and wanted plenty  
of juice. Alternator 2 years old.
Any suggestions?
Cheers,
Dave Houser