1997 Ford Ranger, cloud of black smoke?

1997 Ford ranger, just cleaned the fuel injector a couple nights ago. Went to go start it up just a few minutes ago and a black cloud of smoke came pouring out of the exhaust I'm assuming. Is that normal since I just ran fuel injector cleaner a couple nights ago?

It is unburned fuel.

Hi that is the signs of one old and worn out old engine. Because it is urning oil as the tolerances have increased over time due to wear within the engine.

Run it for awhile, it may clear out.