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Here’s one last look before the upper intake manifold is installed and Project Cheaper Sleeper’s nitrous system goes completely into hiding forever. Visible are the two Y fittings on each side of the intake—these feed nitrous and fuel from their respective solenoids, which are mounted behind the firewall. Basic wire loom shields the braided line from the curious, and a black fuel-feed from the Schrader valve (zip-tied to the passenger-side fuel rail) makes this setup pretty incognito, with the exception of spray bars running the length of the plate. Thankfully, gaskets for Explorer intake manifolds are still available. We found them in stock at Gene Evans Team Ford & Lincoln in Atlanta, Georgia, where NMRA Coyote Stock World Champion Joe Charles serves as parts master.