Battery Problems please help!!!!

If it is going to the left from center as soon as you put your foot on the pedal you are not charging. Make sure you have a good ground cable between the engine and battery. Also try the firewall connection. This is a common area for corrosion so I am told. You might have to replace the connectors. Go to this site and check for your wiring diagram
http://www.mymopar.com/72to76_wiring.htm