Jon,
I've got an MSD 6AL w/pills, and also it's been upgraded to a 6T (Timing Retard), as well as including a Soft Touch Rev Limiter.
Here it is on eBay:
eBay Motors: MSD 6A Upgraded to 6T & Soft Touch Rev Limiter (6400) (item 320167457613 end time Oct-13-07 21:37:05 PDT)
-Jo$h