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Demon Carburetion Speed Demon Carburetor 1282020

Annular Discharge Boosters


650 cfm - Mechanical Secondary - Annular Booster - Throttle Bore 1.688 in. - Superseded To PN[SPD-650-AN]

Pricing: $709.95


650 cfm - Mechanical Secondary - Annular Booster - Throttle Bore 1.688 in. - Superseded To PN[SPD-650-AN]

Demon Carburetion - Speed Demon Carburetor P/N 1282020 Features:

  • Clear Dichromate Finish For Good Looks/Corrosion Protection
  • Calibrated For Stock/Mild Perf 283 - 390 cid V8 Engines
  • Mechanical Secondaries For Awesome Tire Turning Performance
  • Dual Accelerator Pumps For Additional Fuel Under Initial Accel.
  • Billet Metering Blocks For Exceptional Fuel Metering Capacity
  • 4 Corner Idle Allows To Precisely Control Your Idle System
  • Billet Baseplate Allows Precision Fine Tuning Of Idle Speed
  • Large Capacity Float Bo


Holley® has been manufacturing fuel systems of all shapes and sizes since 1903. In fact, over 250,000,000 carburetors have been produced over the years for everything from Henry Ford’s original Model A to the baddest factory muscle cars ever to roll out of Detroit. Did you know that Holley supplied over half the carburetors in WWII including not just automobiles, but PT Boats and airplanes? It’s true. No company knows fuel systems like Holley. Today, Holley carburetors continue to be a dominant force in high performance and racing, winning more races than all others combined. Holley carbs have powered every NASCAR Sprint Cup Series™ team and nearly every winning NHRA® Pro Stock team since the 1960s and every weekend still today.


  • 1282020
  • 1282020
  • 792898304499
  • Demon Carburetion
  • New

Shipping Information

  • Item Requires Shipping
  • 15.0 lbs.
  • W11.0000” x H7.5000” x L12.2500”

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