The old "blue" pump and heavily kinked aluminum line could not have delivered the needed fuel flow. The new FAST inline fuel pump is rated at 750 lb/hr and will handle 1,300 horsepower. There is a 100 micron before the pump and a 10 micron post-filter. New -10-, -8, and -6 AN recirculating hoses in the system feed excess fuel back to the fuel cell.
The FAST engine control unit (ECU) can alter engine ignition timing, and if you’re looking to add a dose of nitrous, it also has a nitrous feature that will trigger an ignition timing retard and also a little bit of fuel control to handle it.
The EZ-EFI does use a wide-band O2 sensor with a feedback loop in it to adjust the air-fuel ratio. With provisions for an O2 sensor completed, the remaining chores of the installation are as elementary as bolting on a carburetor.