try a few known good dist. i've seen "new" dist from various autoparts stores bad out of the box...don't rule it out.

run down this list:
1. ngk plugs?
2. stock wires or ngk wires?
3. coil
4. icm
5. other wiring

just discovered north ga and mice and how they like cars. it's getting cold and they love to hide out in/eat car's wiring.