1946 & 2300 carb ?s

[Drives a 5]

First off, what did the two ports that I highlighted in red originally go to on the Holley 1946 for an 82 3.3? I believe it was emissions equip. of some sort, but I want to check.
http://www.fiveocd.com/img/1946.jpg

Second, does anyone run a Holley 2300 350cfm on a stock or near stock 3.3 in here? If so, how does it run and what spacer/adaptor are you using? Thanks!

Scott

 

[80Stang]

In the Shop Manual the upper one is marked "Venturi vacuum pick-up tube" and the lower is "Spark vacuum pick-up tube". The first one should be green and tha latter gold.