mike21b,
Thanks for the info. I'm still catching up on the "new" technology, and the even "newer" (EFI) technology.
I remember as a kid witnessing the changing of timing on cars and bikes when getting up to higher altitudes, and then later learning to do this myself. Here's a link that will bring back some memories, check out the ignition timing section.
http://www.performanceindian.com/Timing.html