4150 Shear Water-Methanol Plate.

This innovative plate bolts on any manifold that has a 4150 flange on it and allows you to combine the performance and safety benefits of Water Methanol injection with the horsepower and throttle response improvements of a carburetor shear plate. This design places the water methanol nozzle (not included) in the center of the Carb bores for excellent cylinder to cylinder distribution.