hello just traded for my first 2nd gen Camaro. Has an original 350 sbc. The car will not turn over. had the starter checked and put in a new battery. When I turn the key to "on" i hear a loud "hmmmmm" but when i turn the key over to start the car, the sound stops and nothing, no sound what so ever, doesn't turn over. now for some reason my blinkers come on and my headlights sometimes. Also my gauges do nothing as well. Once the key is back in the on postion the sound comes back, till i turn the car off. I believe it might be a wire powering the starter (purple if im right) that might be burned by the headers, and shorting out. I was wondering if im the right track, and would like to know if there are reasons this might be happening.