This is a photo of the Autoline c935 carb that I would replace mine with. It appears to be my same Rochester B, except that, if you look at the top left in the photo, within the throat, it seems to have like some kind of stubby air inlet or airhose nipple. My Roch B does not have this and I am wondering what it is for and whether I need to attach something to it. Autozone did not know what to tell me.
http://contentinfo.autozone.com/znet...935/2/image/3/