[Schrade]

I follow what you're saying there Dom (except for how to adjust IAC). TPS voltage I can set too.

But, is there no circumstance - no condition, which dictates any SA BETWEEN 16, and 21???

In other words, ... are you believing that when the timing advances for higher rpm / higher TO %, that THIS is causing the RPM's to go back down???

And what's the significance, if any, of DM readout not showing anything between 1.6% TO, and 2.4% TO?

I plotted TPS voltage vs TO%, and voltage increase did NOT show a corresponding jump.

And remember, I increased throttle with an 8mm wrench on the TB stop screw, in PERFECT increments, 1/12th of a turn at a time, to ELIMINATE mechanical error.


ed.:
I won't be able to ask the right question, until I get values plotted in a grid...