Ok, my 86 camaro gets power to the dash and all gauges when the key is turned however when ever i go to start the car or use the headlights/turn signals it just looses all the power and dies, even with a new battery. Some times the starter will click once but thats all. the car has a 79' 350 so some things were changed but the car was recently running. The only thing i changed since was new posts and terminals. PLEASE HELP im going !!!