> The single Stromberg carb I have on my car has the vacuum
> port on the bottom. Is this a port that will have vacuum at
> idle? or at speed?
Should be a retard port. The advance port on ZS carbs is on the top.
But it's easy enough to check, just hook up a line and see if it has vacuum
at idle. If you don't have a vacuum gauge, just hold your finger over the
end of the line for a second, then see if it pulls at your finger as you
pull it away.
> I currently have this disconnected and the timing set to
> 10deg Before TDC.
Personally, I'd leave it that way. The vacuum retard wastes fuel and
increases CO2 emissions; which seem to me to be more serious problems than
any slight reduction in CO and HC it might provide.
Randall
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