cheater system is up to 250 horse power. it was bought years ago and never used and is in new condition. this system sells today at Summit for $941 plus tax also has a Nitrous gauge included. kit is designed for square bore 4150 style carburetor
NOS Cheater Nitrous Oxide Systems

NOS Cheater nitrous oxide systems are designed with the serious racer in mind. They feature larger nitrous and fuel solenoids than the Powershot systems and can be adjusted in a matter of seconds to add an additional 150 to 250 hp, simply by changing fuel and nitrous jets. They use a thin, 1/2 in. injector plate that fits between your carburetor and intake. Highly accurate spray bars within the plate simultaneously inject both nitrous and fuel into the manifold, creating a smooth rush of extra power on demand. Kits are also available without the bottle or injector plate. They are not recommended for intake manifolds with a separate inlet for each carburetor throttle bore, except for 3 x 2-barrel setups. Racing fuel is recommended.

 comes complete with:

* Unfilled nitrous bottle
* Cheater nitrous and fuel solenoids
* Injector plate
* Filters
* Fittings
* Four stages of jets
* Switches
* Aircraft-quality stainless steel braided hose
* All other necessary hardware for a complete installation
* extra Nitrous gauge