I actually like the 123/Tune+. I made over 300hp on an engine dyno with a stroker L28 (modified cam, pistons & head). Works for me so far...
@alienpoker Would you mind sharing your centrifugal+vacuum advance curves for the stroker engine? Just as a comparison to my current settings. I'll head to the dyno in spring, I'd like to have a few curves to compare against each other.
I just looked up the stock advance curves 1972 L24 vs. 1979 L28, quite interesting:
1972
Initial advance 17 @ 650 rpm
Centrifugal advance 18 @ 2400 rpm
Total advance 35 @ 2400 rpm
Vacuum advance 0 @ 13 kPa
Vacuum advance 9 @ 27 kPa
Vacuum advance 12 @ 33 kPa
Vacuum advance 15 @ 44 kPa
1979
Initial advance 10 @ 800 rpm
Centrifugal advance 17 @ 2500 rpm
Total advance 27 @ 2500 rpm
Vacuum advance 0 @ 20 kPa
Vacuum advance 18 @ 40 kPa
Note how early full advance kicks in - way earlier than the often mentioned 3000-3500rpm .