The SMW 4500 Flow Plate is a blended carburetor spacer that fits 4500 flange open plenum manifolds,
open spacers or tunnel ram top plates.
Flow Plates are an alternative to shear plates. Some engines will produce more power with a Flow Plate than a Shear Plate.
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 to prevent the air/fuel mixture from expanding too quickly.
Flow passages that expand abruptly cause flow restricting turbulence.
The gradual blending reduces unwanted turbulence that normally exists
at the carburetor exist that chokes-off flow at wide open throttle.
Flow Plates are glass filled; Nylon they are fuel and temperature safe.
Bore size is for 2.0 throttles
Flange thickness is 3/8"
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