If you want ''Bolt-N-Go'' horsepower, NX can fill the bill. Their EFI Single Nozzle kits use their patented ''Shark Nozzle'' and are fully adjustable. 4-Cylinder and V6 applications can choose between 30, 50, 75hp jets while V8 and V12 can go up to 150hp jets. These systems require no engine modifications, operate on stock fuel pumps and require no timing retards. Will work on any EFI equipped vehicle. Includes 10lb bottle and installation hardware.