[LPete]

Originally Posted by WINGNUT

I was going to post a question about how to use the adjustable light since I'm not really sure how it works. But since it was brought up, how do these work, and when do you use them?

You turn the knob until the mark on the balancer is lined up with the "0" mark on the timing cover, then read the advance on the dial on the light. The advantage is that you can measure timing when it's off the scale on the timing cover.