Editing Electrical dieing problems

my 67 chevy nova dies at stops or driving down the street. No dome light or anything electrical on. will start after a short wait. did get it home tho. I changed the ballast resistor. seems ok,dont know tho. not charging cause I had a knew battery with me,iy did nothing to help it start when i hooked it up,still no dome lite or power. book says wiring goes thru starter solenoid and the fingers serve as switch in cicuit.might check it out next.