9/16'' x 24 Fuel Bowl Threads
  • Holley Single Feed 600-660 CFM Carbs
  • Holley Dual Feed 4010/4011 Series Carbs
  • Holley 2-barrel Series
  • Demon and BG Carbs






  • 5/8'' x 20 Fuel Bowl Threads
  • Edelbrock Thunder Series, Performer Series and Carter AFB carbs



  • 7/8'' x 20 Fuel Bowl Threads
  • Holley Dual feed 750 through Dominator (1350 Series)
  • Quadrajet up to 1974













  • 1'' x 20 Fuel Bowl Threads
  • Quadrajets 1974-89
  • Edelbrock Q-Jets


  • Carburetor Fitting Sealing Washers