- Jan 7, 2004
- Santa Rosa Valley, CA
Anyone know the correct setting is for this spring in the picture below? It looks like those two nuts can retard or advance the base timing. Where is the starting point? Does it matter? I'm trying to get more familiar with the effect of vacuum advance on different driving situations. This dizzy is one of those advance and retard electronic units that started showing up I believe in '78. The next thing I'm trying to figure out is my total advance. If anyone knows what that should be, approximately, shout it out.