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It looks like it's running extremely rich. It's hard to diagnose what the problem is because so much has changed all at once. You have a JDM engine with a different intake and you are boosting it and running a custom tune. That's a lot of variables and so it's difficult to diagnose with so many things competing with each other.
I would start simple and then add one layer at a time. Try to get it to run stock first and then build up from there. The old harness and old sensors may not be compatible with a JDM engine. What if you flashed back to the stock tune and then started diagnosing from there? The injectors are putting out way too much fuel and it could be that it's not seeing the air flow properly from the MAF. If you disconnect the MAF and let it run in open loop mode, does it improve?
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