Zenith-Stromberg CDS 175 Parts needed

["Henrich, Dave" <dhenrich@MSDEV1.Waterloo.ATTGIS.COM>]

MG fiends:
Decided to "overhaul" my Zenith-Stromberg CDS 175 (1979 MGB) over the 
weekend. I had been noticing poor start/idle on cold days. I thought it 
might be the infamous water/auto choke.

Upon further inspection I found that the fast idle pin (within the choke 
assembly) is badly worn and is about 1/8" short. Also, it is next to 
impossible to remove the old one.

Can anyone help locate either a replacement pin OR the complete assembly?

Thanks,
Dave