1989 749 and 1990 707 have almost identical wiring

[BigBanks78]

I was trying to find the 5C def to look at an 88 or whatever this AMDF is but couldn't. I used an xdf labeled _8B, I also downloaded one that starts with $8B..???2014. When I get to work I'm gonna try to read a couple stock chips in the $8B and reread my 91 and 89 chips.....so tuning a car with 60 max advance is not good? Is that y I've turned timing so far up? Like 30 degrees in some places.

oh and what does the "SPARK ANGLE" refer to? Is this something I can check mechanically? And maybe if max add should b 60.12 maybe -14.76 is what the scaler should b.......-14.76 from 74.88 (spark angle) 60.12 max spark. I have moved a point on timing table to 62.?? Tho