Flickering or pulstating Headlights

coalman said

I hate to bug you again, on the relay installation, but my car's coil wiring comes from the Street Fire P/N 5520 ignition box direct, it has no ballast resistor and I ended up with 3 wires on the incoming and 2 on the outside. Thanks for your time!

Click to expand...

You're definitely not bugging me. I am more than happy to help. I am not sure what the street fire wiring harness looks like but all you have to find is a wire that is hot while the engine is running. Use that to power the relay coil and then use a second wire to supply the relay contacts. One side of the second wire will go to the battery or starter relay big stud and the other will go to one side of contact on the relay. The other side of the contact will feed your regulator.