OK, I guess neither on of us is getting the point across!!
Any ways, here's 2 screen shots of his setup,
The first one is a run, you can clearly see the timing is fixed at 27 and you can also see the MAP is not moving around enough to mess with the timing or the VE map. The MAP does bounce around some but of course it's because the RPM's are crazy.
The second shows the timing map, clearly the timing isn't going to move anywhere at WOT but 27 degrees.
I'm not sure why your thinking the MAP is messing up the timing and/or the VE map based on the information before us? The location of the vacuum signal plays no part here. It may play a part in part throttle driving but that's not the issue.