I have a 89 Sea Ray with a 92 gen v 454 10114182. I have just had the motor rebuilt and the are some wires that I am unsure where they go. The are a purple and red coming from the distributor that I believe go to the coil but which one is positive post and which one goes on the negative post? There is another set of red and a purple wire coming from the main harness. I'm not sure if the go to the coil or the mercathode? And the last wire is a orange wire coming from the Hall effect switch in the distributor that I am unsure of?