[TR] Stromberg Vacuum Ports

[Berger Bob]

All,

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?

This carb is not original to my car.  The distributor is original and  
I have an original Opus ignition that works, I'm just trying to  
figure out if this vacuum port will work with the stock vacuum retard  
unit.

I currently have this disconnected and the timing set to 10deg Before  
TDC.

Thanks for your help.

Berger Bob
78 Spitfire
St. Louis, MO