In the above post....I meant to say "air cut valve located on the right side of carb".
The intake manifolds with 2 vacuum ports, don't always have hoses attached to both. A vacuum port that is not used, must be capped. If not, your fuel pump or petcock will not operate as designed. Any air leaks in or around the manifold will cause tuning headaches, create a lean condition, and raise the operating temperature of the engine.
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