New, never used nitrous kit for spreadbore carburetors. 125 hp kit. NOS Powershot 05004NOS. Carb plate was installed on engine but nothing else was ever used. Tank is empty, never been filled, 10 lb bottle. Includes all wiring, hoses, solenoids, brackets, switches to install. Can easily convert to use on square bore manifolds by buying a new carb plate. $200
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