5.4L Modular Motor Intake Manifold Test - Factory Fast Vs. Advanced Aftermarket
Basically a mini Cobra R manifold, the Boss 290 from Australia was a factory Ford piece. Too bad we don't see this combination on any Mustangs in the states. The cross-ram design looked trick and made impressive power-always a good combination. Equipped with the Boss 290, the 5.4L produced 457 hp and 420 lb-ft of torque.
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