The DS2 box isn't able to vary the dwell control, correct?

i don't know that i'd go re-gapping the plugs unless i could pile more dwell on, in order to get the coil charged properly at higher rpms.

i suppose it depends on the RPM range of your driving.
Or as Baron said, you could try just going .05" at a time until you run into trouble.


EDIT:
this may be less of an issue with a 6-cylinder. i tend to have a V8 mindset.