Ignition Wiring
 

I juts got an 89 rs it had TBI I am putting in my 305 with my old distributor that has HEI I know about the 3 wires that goes in to cap but my question is there is a harness with 4 other wires im not sure what those 4 get hooked up too. I know that white is tach and red is power but it does not have that on the harness from the distributor