Sorry bud dyno says 426hp @ 5700rpm & 440Ft-lbs at 4,500rpm net
That equals 363hp and 374Ft-lbs at the wheels .
In addition, Hp goes 425 at 5800, 425 at 5900 and 426 at 6000.
This is why this intake is so specific to that combo.
Tha cam,head combo rocks! Even more so with this intake!