Wilson Plenum Ported Kaase Boss Nine Manifold for Big Block Ford

Jon Kaase Racing Boss Nine Intake Manifold for Big Block Ford engines.  Available in either 4150 or 4500 flange.  The manifold will include our wilson plenum porting service.

Plenum port service includes opening up plenum for increased volume, optimizing angles and taper from the carburetor/throttle body entry for better distribution, and improving divider design.  The service also includes a gasket match to customer specification.

This is not a shelf piece, the manifold must be ported to the customers specifications after it has been purchased.