Is it true that the Zex NMU always makes the car run extremely rich?

[the real deal]

Does the NMU really dump in way too much extra fuel just to be "safe"? I was discussing this with another member of corral.net and he makes it sound like there's no way to tune around this and that I should ditch the NMU for a different wet EFI kit with regular solenoids. I want to know if this guy is just blowing smoke or if I really should consider ditching the NMU. Thanks.

[Stroud]

No sir, he's just "blowing smoke". The NMU only houses the fuel/air solenoids, filters and activation electronics, it doesn't adjust anything.