Why is it so impossible to believe? Those numbers are similar to the numbers my 408 Magnum recently spun out on our local chassis dyno. 382 hp & 525 ft lbs of torque at the wheels.
A well tuned injected 408 with ported big valve aftermarket heads, a well-matched roller cam, 10.2 to 1 compression and full TTI 3" exhaust makes an efficient & surprisingly potent street motor. Especially when coupled to 3.90 gears, an automatic with overdrive and a properly set-up rear suspension with drag radials..
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