[Stocker]

Way back in 1992 I sent my Q-jet to The Carburetor Shop in Ontario CA. IIRC, the shaft bushings were worn out and I suppose the carb was in need of a rebuild anyway. They went through it, re-bushed it, and gave the primaries a slight overbore (said to boost low-end just a bit). It was returned ready to bolt on & go.... no adjustments needed. I *think* they are still in business, though the listing I found online appears to be next door and the last four of the phone number are different.

Anyway they are kinda more-or-less in your neck of the woods... maybe worth a look if you decide to have yours rebuilt?