I Need Help?

i have a 90 sc, when im driving it the battery light will blink for no reason i turn off all of the lights and accessories and the light keeps blinking then sometimes it will go away and start charging. but the light will stay solid the battery will drain, lights dim, car sputters, radio will cut off and on. the battery will go almost completely dead and the car wont let me give it any gas. please i know these questions have been asked a million times but i need help please help me if you have any information.

Check the connections at the battery and alternator. Make sure they are CLEAN and tight. I would say that you need an alternator.