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Fuel cut has nothing to do with fuel flow.
You could put in a 1000lph fuel pump and rewire it and it's won't affect fuel cut at all. Putting in bigger injectors or raising the fuel pressure with also not fix fuel cut on their own.
Fuel cut is based purely on the ECU reading to much air flow, it doesn't give a crap about fuel, it has no way to even know if it's running lean at WOT. The ECU is basically just programmed that if it sees over X amount of airflow at X RPM it does fuel cut because it thinks the wastegate has failed. You have to make the ECU see less airflow to keep it from fuel cutting. You can do that by lowering the boost, hacking the MAS, or using an electronic fuel controller to lower the airflow signal Hz getting to the ECU.
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