^ as above. The two barrel carby has a fuel bowl vent that is connected to the carb port on the cannister. The four barrel carb does not have the fuel bowl vent so the carb port on the canister is blocked off. On the four barrel carb the cannister only stores vapour from the fuel tank. On the two barrel carb the cannister stores vapour from the fuel tank and from the carby float bowl.
The pictures from the parts manual are the earlier version which did not include the vacuum advance control system.


This looks like the correct setup.
http://australianmusclecarsales.com.au/muscle/130897-1-a9x-hatch-produced


Edited by ls2lxhatch, 13 October 2010 - 11:49 AM.