OK the saga continues,found out my dizzy fell appart cause some numpty had put an overlong screw for the condensor(ahem,wont do that again)just long enough to clip the top of the posts,shaking them loose.Thats been repaired but not tried,just been told of a new HEIsystem on the market,fits all early sixes,dont think its the langdon one as it has an internal coil,anyone else heard of this??