Dual point Distributors

["Dan & Lori Fitzgerald" <danlorifitz@earthlink.net>]

Listers,

I have a question concerning dual point distributors.  What should the point
gap be at?  If I measure the dwell, won't I see both points, how can you
tell which point needs to be adjusted?  Can some one explain to me what the
added point set does in the ignition circuit?

Thanks,

Dan
B9470033