I did search on this, but couldn't find quite what I'm after. On the manifold behind my carb I have a little thing screwed in that has two vacuum lines coming off, one for the vac advance and one for the transmission. I'm not sure if this is a direct line to the manifold vacuum or if it's switched somehow, anyone know? If it's a straight shot to manifold vacuum, can I get rid of this thing and connect the lines directly to the carb somehow? The fact that I have this may be a carry over from when I had a spaghetti of 50 million vacuum lines for all the emissions stuff. Now I just have the EGR.