OK.. got the rod swap and escaped for a 20 minute ride mixed in town and highway.
Setup and results:
74 Primary jet
went from 60-50 rod to 58-50
Idle about the same 13's and occasional 14.
A hair more rich on highway and around town.. more 13's fewer 14's. Fixed cruising & low speed tip in. Not as "smooth" by seat of pants.. might actually mean it's running better though.
60-50 rod was like a marble on a glass plate smooth on highway but went slightly too lean off cruise and in low throttle situations infrequently. If I had a long highway trip I might just toss it back in.
Not going to pull a plug right now as it's near 100 today and garage with hot car is... hot.
I'll get a plug pulled tonight after the sun goes down.
Can you take logs of the AFR?