This kit was developed for the Super Victor Direct Port Nitrous System and includes 64 jets, 8 each of .025'', .026'', .031'', .033'', .035'', .038'', .039'', and .045''. Edelbrock CNC-machined stainless steel jets won't erode like brass jets and maintain precise dimensions for accurate and safe horsepower gains. Use this kit to fine tune your nitrous system for maximum performance. Will also work with most other brands of nitrous systems (except Nitrous Express). Sold individually unless noted 8/pkg.