Carb problem???

["Brian E. Serra" <Brian.Serra@ey.com>]

My 77 Spit is acting up. It dies at some stop lights and in slow quick turns. 
It has the SU carb in it and the two previous emission hose connections on the 
right side have plugs on them. One of the plugs was leaking so I put a new one 
on a week ago. Can these connectors be plugged? Is that my problem? I don't 
know, maybe it is something else with the carb. It was running fine before.
Any insights?
Thanks,
BS