I guess it would help if I actually answered the question, sorry!
If you have a stock ECU/injectors and you're running rich, it most likely means that the ECU isn't hearing something from the emmissions/oxygen sensors and is putting in more fuel to compensate.
My guess is that you have a standalone or piggy-back fuel system, though, which means you would have to get readings from the oxygen sensors (or EGT), and tweak the fuel map to give you less fuel in the required areas. That will require a laptop and the software to interface into the fuel system, as well as some dyno time (for best results).
Cheers!
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