2.0 distributor questions..., 205AA dizzy with dual Webers Options

[audio_file]

I searched! I even tried to resurrect an old thread but it didn't get much attention, so I'll start another...

I bought a 205aa distributor (1974 1.8 dizzy) for my 2.0 with dual webers (it has an 009 now), and I'm not sure about the vacuum connections. The vacuum can on the 205 has two vac ports, as I understand it, one for advance and one for retard ( (IMG:style_emoticons/default/drooley.gif) (IMG:style_emoticons/default/biggrin.gif) ). What do I do with the retard side, use it or plug it? Where would the retard side plug into?
Will this operate as well as an SVDA (assuming both have petronix installed), or should I re-sell this 205 and pick one of those up instead?
Finally, do I need to use the vacuum from both carbs, or will one suffice?

TIA
Chris

[r_towle]

For advance, drill out the ports on the carbs for vacuum, tie them all together into a single line, then tie that to the advance port.
Don't use the retard port, leave it open and unplugged to the atmosphere.

Set timing at 3500 rims to ensure you are dealing with full advance when timing it.
You may need to mark your fan and housing, or use a newer timing light that can be programmed for 27 degrees advance.

The advance vacuum canister just brings on the advance sooner than the normal weights do it, so it's a smoother ramp up from a stop light..
Retard is purely for emissions and seeing as you have carbs, you are not worried about emissions.

Rich