My mechanic recently repaired my Rochester 4 barrel. Apparently, the bimetallic strip on the choke had broken, and somehow someone had bypassed it or done some other bad repair. Even so, before the latest repair, the car started and ran beautifully...no smoke. But now, although the car starts very quickly, it also sounds like it's flooding almost immediately, before stalling completely. If I touch the accelerator a bit just to keep it going, I find myself fighting it to keep going. Invariably I also get plumes and plumes of black smoke, so much so that I have to turn it off and evacuate the garage! The only way I can get it going cleanly without any smoke is to take off the air-cleaner cover and use a pen to hold open the butterfly to let more air in, until it warms up. This works fine, but is a pain in the neck.
Also, I noticed the air cleaner has two small hoses under the its body. Is this part of the emission system? Maybe they have been re-connected wrong. Both fastening points on the air-cleaner seem to be dummy attachments, because they don't actually open back into the air cleaner(?). Anyway, one hose leads back up to the round bit on the snorkel, whilst the other one goes to (what I think is called) the PCV valve(?) a little metal tube on the manifold in front of the carby. So if they both lead to dummy points on the air cleaner, why are they there at all?
If someone could help on both these questions I'd be very grateful. My apologies for not understanding this stuff, but I'm not a mechanic....