[DeTomaso] Engine stalls on start up -Help!!!

[The DeTomaso Registry Guy]

Folks,Scenario:  1972-stock motor with Demon carb--ran great only a few months ago.  Took seats out ot reupholster.  Car sat for a
month Car starts and stalls Give it gas-fights to stay running
Observations:Very low on gasAmmeter pinned to right the entire minute  the car was fighting to run.  

Added some gas--definitely off E but not a 1/4 tank  ran much longer but still had to feather gas to keep running--Ammeter pinned to
right all the time car was struggling to keep running
I haven't run the car in a month.  
Suggestions?  Thoughts?  Thanks!!! 

>>>First deal with the charging issue.

Any car (battery) stored for a while will likely need a top-off charge before driving.
It can be hard on the system when at max charge for longer periods.  Why strain the car's
electrical system.

*Put a trickle charger directly on the battery until charged. 

As to the starting or running, it might be the fuel pump (weak, old, or diaphragm failing).  
You symptoms may be fuel starvation.

Should I continue ?

Chuck