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The Nitrous Express 4150 Crossbar Stage 6 conversion plate replaces spray bars with a billet crossbar design for 4150 4‑barrel carburetors, offering Stage 6 nitrous delivery. By eliminating round spray bars the crossbar improves atomization and cylinder distribution; the conversion includes plate hardware and a crossbar layout intended to provide more consistent, evenly distributed nitrous across cylinders.
Nitrous Express 4150 Crossbar Nitrous Plate Conversion Stage 6
