Problem with Mighty Demon 750

Looking at your pix of the air bleeds, they mains and idles look to be about the same size. That is not normal. The idle air bleeds look way big. Is that the secondary side? Look at the numbers in post #42 for IAB and MAB? They are quite different and the inner bleeds (the main air bleeds) should be much smaller than the outers (the idles air bleeds).

And in post #1, is that your actual metering block? I can't see too well in the pix, but there look to be NO main emulsion tube restrictors in place. Look at the 3 threaded holes in a vertical row on each side; there should be brass 'jets' (emulsion bleeds) in each of them per the info on post #42. What the heck was this set up for previously?