Do NOT run a FCD, period. You can safely tune a car away from fuel cut without just doing it the lazy way of adding the FCD. The VPC, AFC, or whatever other fuel controller you use, will "trick" the ECU into thinking there is less air than there really is and will effectively allow you to raise fuel cut up higher. The FCD is just another electronic thing that could fail or something else to wire in with everything else. Completely not necessary with proper tuning, which you should be doing anyway.That's what you can run with a FCD?