I finally got the '73 up and running with Megasquirt 3. Wow... modernized all the way up to an '84. I'll be plugging along to get a better tune (via keyboard), but right now it's not as 'perky' as the CIS was. I've leaned it out a great deal over the CIS and now, at least, it'll be more efficient if not quicker to respond (read - spark advance and enrichment sequences for WOT). So, it'll get to the dyno this year to sort out for more precision and to correct whatever I manage to screw up. This morning is for cleaning up the car after sitting in the garage for about a year - I'm surprised no one used their finger to inscribe "wash me".
Season's greetings and Happy New.
kj