Ill have to check the FSM. That all sounds correct, but I thought I did see something about electronic timing in the FSM. It didn't make sense to me at the time.
The XR2's timing is purely mechanical. Our timing curves are a lot different.
The internal ingitor isn't super easy to replace on the road, you have to have a gear puller ideally to remove the 4-point cam 'star' that sits over top of the pickup coil. Considering all the other bits and bobs I carry, a dizzy's not a huge deal to carry and it takes 2 minutes flat to swap out.
While we are on the subject of ignition - I've toyed with the idea of replacing the internal ignitor with a more robust external one. Some of the V6 mazda folks had issues with theirs and switched to using an external GM HEI ingitor. They're significantly cheaper than the stock ones, a lot more common, and supposedly more robust. I may have talked about this here before, but what are your thoughts? It shouldn't be terribly difficult to wire up. I think we would need to fabricate a small spacer for inside the dizzy where the old ignitor bolted down, but that would be about it.
Theres some info available by googling "GM HEI mod"
Here's one I read not too long ago:
http://www.clubprotege.com/wil/howto/hei/