Ok. So got moms old car that had been sitting for 10yrs or so. 70k original miles. Ran perfect when parked. Here’s what I have done. Removed gas tank and had professionally cleaned. Changed fuel filter and added inline before carb. Removed carb and had professionally rebuilt. New carb spacer, plugs, wires, cap, and rotor. Did the MMO in the spark plug holes and rotated engine and let sit to wet apex seals. Drained all coolant and replaced coolant hoses. Replaced all vacuum lines on rats nest besides ones on all the plastic solenoids. I have not changed engine oil yet because I wanted to try and warm it up first to drain.
So all said I started car yesterday and started right up but runs a bit rough not horrible but smokes a lot and has some blackish fuel smelling liquid coming out of exhaust. Ran car for about 3-4 mins before shut it off. Where should I go from here?? Need advice. Thanks.

 

Do a compression test with a conventional tester with the relief value open. What we're looking for is a decent amount of compression but not zero or close. Ultimately, you want 80/90 with a conventional tester. 110 would be outstanding. After sitting so long things need to get moving again. Keep running it. Run it for 10 minutes. You want to get the T-stat to open and get some heat in the engine. You'll want to run it several time and heat cycle. Run it, let it site, repeat.

 

Update decided to change oil before proceeding with compression test and oil seemed to have quit a bit of fuel in it. What would cause fuel to be getting into the oil and pan?

 

Low compression, bad ignition, or bad carb adjustment/sticking float.

 

I wouldn't jump to low compression right away. The stalling issue I am confident would be fouled ignition. All that oil you put in the engine fouled the plugs after a few minutes of running. Burning oil would explain the smoking too. When you pull the plugs to clean them you should turn the engine over to scoop any of the remaining oil out, otherwise you will just foul them again. This will also give you a good opportunity to hear the engines compression, typically as long as all of the "puffs" of compression sound even, you're probably fine. After this the possibility of the oil fouling the engine out could is no longer. If it continues to foul the plugs you have a fuel issue. I'm sure the engine is internally fine.