30# injectors are good for about 430 HP in a natuarally aspirated application (using a Ford MAF), because BSFC. basically SUCKS in a blown motor this is a bit misleading. A 36# injector would be more appropriate for the same level of power. FMU's are a cheesy solution to a fuel problem in a MAF car. The best way to do it would be to get an accurate reading on HP then select an injector based on that info. Ideally if you could get then engine dyno'd with a BSFC. number, then selecting the injector would be a snap.
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2002 5M GT (99% stock)
1991 5M LX (30% stock)
patiently awaiting my satin silver 07 Mach 1, and don't forget the shaker
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