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And with that, the system was installed and we were ready to fire up the 454 to start the calibration process. In regards to fuel, our Superflow 902 dyno already has an EFI-ready system. If you're converting from a carb, you will need an electric pump and regulator capable of putting out 43 psi. To make things easier, FAST does offer a fuel pump and a line kit just for the EZ-EFI system.