B RON CO":18t6vjlf said:Personally, I would not even think about ripping out the old wires.
Good luck
What he said.
I replaced everything with a Painless Performance kit. When I got started, it seemed impossible. Now, wiring is one of things working well!
Like Bronco said, get a test light and a wiring diagram and start trouble shooting and labeling wires. The wire colors can be your guide to keeping things simple. Once you think it's hooked up correctly, turn the key to on and check for voltage at the coil and at the back of the starter switch. Then try cranking. Once the starter circuit is figured out, I bet your spark problem will go away. (fingers crossed!)
Good luck!!