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This billet aluminum spacer is designed to allow you to adjust the flow of fuel between the carburetor and the intake by closing the bores of the spacer. This allows you to decrease your horsepower for varying track conditions. To adjust the bore sizes simply turn the threaded shaft which moves the four adjusting valves, making the bore smaller, thus eliminating tire spin caused from excessive horsepower. "WARNING: This product contains a chemical known to the State of Cailfornia to cause cancer and birth defects or other reproductive harm."
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