The Nitrous Express 60545-10 4150 100-500 HP Gemini Twin ProPower Alcohol Plate System with 10 lbs. Bottle is the most technically advanced single stage plate ever designed. The unique direct-port pattern assures you perfect nitrous-fuel distribution. It solves problems commonly found on single plane manifolds, particularly small and big block Fords. This new innovation provides superior distribution and outstanding atomization. With no spray bars to sag, split, block airflow, or damage this is truly the next generation in nitrous plate technology. This Pro Power system includes jetting for 100, 200, 300, 400 and 500 horsepower. System includes lightning solenoids, heavy duty 40 ampere relay, stainless bottle brackets, and extra D6 long supply line (race hose). Fits standard 4150 flange carburetors. (Alcohol Version).