The SMW 4500 Flow Plate is a blended carburetor spacer that fits 4500 flange open plenum manifolds,
open spacers or tunnel ram top plates.
The fairing style design improves flow from the carburetor exit into the manifold by
providing a gradual blended transition from the 4 holes in the carburetor base to the
square opening in the manifold.
Bore size is for 2.0 throttles
Flange thickness is 3/8"