I was hoping he would chime in here. H8PVMNT has probably spent the most time of any of us learning the ins and outs of the AISIN carbs and he lives at high altitude. In your case I would think that the HAC (High Altitude Compensator) would automatically do its job. Just make sure is still attached and functioning properly.
I think he has a weber so I don't really know anything. He would have to be his own HAC. I need to put a weber on something just to learn about them...
