Ford Repair: FORD GRANADA 1977, 1977 ford granada, vacuum leaks

Question
I have a 1977 Ford Granada. It has a inline 6 250 eng. with a single barrel carb. I have replaced the rotor, distrib. cap, plugs, (no points on this model)set the timing as per underhood label, set fast and slow rpm, adjusted rich lean, and then reset idle then replaced the carb with a u-pull from a junk yard, nothing worked I still have that missing when idling, and feels like it,is flooding when accelerating. Any suggestions?
I also checked vacuum at the carb , manifold and distr. all good. Cylinder comp on all six were 105 bleed down was about 4 seconds on each. The guy who gave me the car said he could never get the missing/accelerating problems solved either and thought it was the carb. There is a difference in the two carbs, The old /original one has a plug in a vacuum port located on the drivers side just above the idle adjustments on the same port as the auto choke.
The one from the yard had a 1/4'' hard line connected at that point but went nowhere on the car I pulled it off. I checked a couple of vacuum diagrams one did not have it and the other showed it going to a tee fitting on line with the emission canister and the gas tank. Could this be why I have the problems? that port being plugged Or maybe you can give me other ideas?
Thanks for your time.
Shawn  

Answer
shawn
    
    these vehicles were famous for a cold hesitation/surge but got better after warmed up-so i probably can't help you with a cold problem
but if it is still doing this after warmed up are you getting any black smoke out exhaust that is a for sure sign it is running rich-if it was a used carb please overhaul it a kit should be in the 20-25 dollar range and replace float and fuel filter because if all other things are ok it almost has to be fuel related-make sure you don't have any vacuum leaks-with breather on take a can of carb cleaner and spray around the intake manifold and base of carb to see if the running changes-if not vacuum leaks should not be a problem. take your hands and with breather off grab carb and wiggle-it should not move there are two or three screws in bottom of carb that work loose and it has to be removed to tighten them (hint put loctite on them. let me know what happens
good luck.