boost ref position on carb hat?

yeah, I noticed that when I had it hooked to the comp housing, it would read about 0 at idle and hit 6lbs really quick and sometimes about 8 with spikes to 10, but connected to the intake runner it only ever hits 6. I moved it around a couple of times but settled on the runner because I wanted to see what the engine was seeing too

.... ya know, now that I think about it, I'm wondering if that was the issue that I was having with my referenced mech pump.....too much boost for the pump ( maybe I shouldn't have pulled off the turbo setup after all )