Although I cannot provide empirical data in evidence, I really, truly doubt that your car is running lean just because of those modifications.

Black smoke isn't really indicative of a lean situation, either.

If you can, you might want to go out of the way and let a good mechanic with a computer check out your car. If you are lean at high RPM, then you run the risk of overheating in a way that won't be indicated on the temperature gauge, and you could actually burn a valve or melt a piston.

However, I really doubt you are dangerously leaning out just because of those modifications you've listed. OEM computers on unmodified cars are too rich at high RPM, which reduces horsepower but makes it safer.