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You can cap off the two ends for the power jet and eliminate that circuit and tune the carburetor without it. Power Jets are intended more for 2 strokes, which are more powerful and responsive in the middle to upper throttle ranges when they are a bit leaner on the main jet, but can potentially melt down at WOT from said leaner tuning. The Power Jet was developed specifically to increase fueling in WOT scenarios in order to allow the leaner main jet tuning while also giving them the added fuel during wide open to get the best of both worlds. On a 4 stroke, it doesn't really do a whole lot, especially since 4 strokes are way more forgiving of jetting variances.
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