Here's a nifty article on improving Ford headlights by rewiring them with relays. I've seen other articles along the same lines, but to me this is the best I've found. It lists specific wiring requirements and step-by-step instructions on how to do the job. I plan on doing this once I get closer to "done" on my 71 Grabber. If anyone out there has done this, let us know how it went.