battery voltage question

I know its not 1G I am not sure what gauge it is. I do know about the ground and that it needs to be connected to the frame. That's why I said (for now). Also I do not have a voltage regulator either. Why I do not know I bought this car un-assembled and after all this time just realized it does not have one. I am purchasing that today. Do you have under the dash gauges? If so where do you have yours hooked to? Also do you have a pic of your voltage regulator and how it is set up?