94 Ford Taurus GL 3.0L V6 with some issues. Please help!?

I need some help from someone who knows what they are talking about and please don't waste my time by telling me to junk the car. I am mechaniclly inclined but still need some help.

Issues with my car: hard to start in the mornings but starts fine the rest of the day, from a stop it has very poor acceleration and there is almost no response when i push the pedal to the floor at normal speed, it just slowly gains speed, and i have black smoke coming out of the exhaust pipe and I get less than 100 miles out of a 16 gallon tank. Also the front end of the car shakes around 20 to 25 and goes away around 30 mph.

Things I've done: new plugs, wires, distributor cap, rotor, air filter, PCV valve, gas cap, oil change and filter, fuel filter, coolant flush, and thermostat. Cleaned throttle body, intake manifold, MAF, and linkage. Replaced transmission fluid, filter, and gasket. Replaced fuel injector o rings and fuel line o rings, and fuel regulator. Replaced about half of the air and vaccuum hoses, and several gasket on throttle body. I also pulled an EGR valve from a junked car of the same kind as mine and put it on mine.

What am I missing? Could it be one of the hoses leaking that I haven't replaced yet? Timing issue? Why am I running so rich?

If you have any suggestions that I can do myself please let me know and give me a break down of how to do it. Thanks for your help.94 Ford Taurus GL 3.0L V6 with some issues. Please help!?
First thing I would do is get the codes scanned. Either a mechanic or autozone, you need a code to give you direction. It could be a bad engine coolent sensor or a MAF sensor, cleaning it would solve a lean condition and you have a rich condition, or the pcm causing this. Egr wont do this unless it was stuck open, but then it wouldnt idle if it was. Get the codes then post back what they are and I can give you some better direction. Low fuel psi is not the issue with black smoke . Also a fuel psi check would be helpfull, should have 35 at idle and 40 when the pedal is goosed.94 Ford Taurus GL 3.0L V6 with some issues. Please help!?
blocked exhaust

bad mass air flow sensor

bad ect sensor

engine running too cold, need 190degree thermostat

low fuel pressure94 Ford Taurus GL 3.0L V6 with some issues. Please help!?
How about the Oxygen sensors?