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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
I could be wrong but I think there should be two basic distributors.

Single Connection Pot:
This should be Vacuum-Advance at curse, not at idle, and at speed the Vac-Advance goes away with acceleration and the loss of intake vacuum.

Double Connection Pot:
This would have Vacuum-Retard at idle, and Boost-Retard with on-boost acceleration.

If this is true one should never run without the vac-line connection on the single connection pot disconected.

On the Double Connection pot you might run without the Vac-Retard connected.

Again, I could be wrong on this.

I could see the possibility of a pot that has a single connection that might have 'both' Vac-Retard and Boost-Retard but not just Vac-Retard. Someone used to make a modified pot for a Turbo Charged Corvair that did this.

Brian seems to understand how the single connection pot distributor works so I hope he can help us figure this out when he comes back.
Old 03-30-2010, 04:14 PM
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