Ok, good and bad news... The cold start injector does not leak. I started and ran the car for 10 minutes and not a drop seeped from the injector. When I started unbolting the injector from the manifold I did notice that the two bolts that secure it were barely finger tight, as in no effort to unscrew them. I put the injector back and tightened the bolts. The idle seemed smoother since the vacuum leak from the loose injector was gone but I still have the rich smelling white smoke.

Going back to an earlier question, I had originally replaced all 8 of the fuel injectors when I started doing my restoration, actually when I had to replace the black rubber boot under the FD. I bought a used set of injectors off of eBay. I did a cursory test and the pattern seemed good, nice mist as I recall. I didn't do a pressure test etc. Do you think they could be leaking? I'm new at this CIS stuff, but seems like the injectors are always pressurized, right? If so, then if one or more were bad they'd be squirting all the time...?