[TICKFORD220]

My bf xr6 does exactly the same thing,battery and alt are perfectly fine,once it starts getting that fuzz youll never get rid of it without replacing the battery and battery terminal/earth lead.
Ive removed the battery terminal and fully cleaned it(removed the fuzz back to clean metal) and then used bi carb and boiling water to neutralise the acid on the terminal and battery posts,it only comes back with avengance.
I just regularly clean mine.
I have replaced the battery on my bf,made no difference,because i havent replaced the earth lead,its had that fuzz on it so it will always come back......
Had exactly the same issue on my eb ghia v8 as well,until i got new terminals and a new battery,never happened again,it was that bad that it ate the complete terminal away to almost nothing and it snapped off pretty much.
Much easier on the eb,the terminals can be replaced,bf needs a whole new earth lead.