M-1 Intake Manifold

Don't make the mistake of underestimating an m1 single plane it was the bar that all other small block Mopar manifolds were measured by including a Victor Jr, you would be hard pressed for your combination to beat it with any other manifold especially if you have 391s or steeper rear ratio. And in a combination like yours will make more horsepower and torque above 4600 RPMs just about anything