Zipper's - Thunderpro Thunderjet And Thunderjet Kits


  • ThunderJet's patented third fuel circuit delivers needed fuel to the engine only at higher rpm (4500 and up)
  • Allows use of the main jet to tune for smooth, broad mid-range power - supplement the top-end with the ThunderJet
  • Jets are used to control the amount of fuel sent to the engine
  • Comes with complete installation/tuning instructions and extra jets
  • The system can operate over a wide range of altitude and atmospheric conditions
  • ThunderPro ThunderJet is designed for today's larger-displacement engines, with a higher-capacity fuel delivery tube for increased volume when used in larger, high-rpm engines
  • Made in the U.S.A.
  • NOTE: Some machining of carb body is required.
  • NOTE: Legal in California only for racing vehicles which may never be used upon a highway.