This GM HEI has the typical gummed-up mechanical-advance mechanism. Note the corrosion on the advance-weight pivot pins (arrows) caused by voltage arc-over and lack of lubrication. Brad Urban at The ...

Get a trick advance kit for your distributor and your car will have more power and get better gas mileage! Does this sound like hype, or is this the promise of "free horsepower"—with the only ...