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Demon 1402020VE Speed Demon Carburetor, 750 CFM
Demon 1402020VE Speed Demon Carburetor, 750 CFM

Demon 1402020VE Speed Demon Carburetor, 750 CFM

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Demon 1402020VE Speed Demon Carburetor, 750 CFM
Demon 1402020VE Speed Demon Carburetor, 750 CFM
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Part # 4251402020VE
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for Demon Carburetion to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item 4251402020VE is made to order. It will be shipped from our warehouse when it is produced.



The Speed Demon series is the most formidable performance street carburetor available today. It features the most advanced design manufacturing processes that provides street enthusiasts with racing carburetor technology in a very drivable package. The Speed Demon line offers a wide range of sizes and in VE-series (vacuum secondaries, electric choke) or twin-squirter (mechanical secondaries) designs. Across the range of sizes, from 575 cfm to 850 cfm, the Speed Demons deliver balanced, high-velocity airflow and exceptional fuel metering capacity to match the fuel requirements most street engines. A Speed Demon carburetor is ideal for muscle cars, stock rebuilds, tow trucks, mild performance applications and crate motors. They are designed for engines with cam profiles between 220 and 240 degrees duration at 0.050".

  • Clear Dichromate finish for good looks and corrosion protection
  • Calibrated for 393 to 477 cid engines & mild 427 to 455 cid engines
  • Vacuum secondaries allow use on a wide variety of vehicles. Compensate for all vehicle weights, gearing & transmissions to allow smooth opening of secondary throttle plates
  • Quick change vacuum secondary cover allows you to tune for performance or fuel economy
  • Billet Metering Blocks for exceptional fuel metering capacity
  • 4 corner idle allows you to precisely control your idle system
  • Billet Baseplate with Idle-Eze allows precision fine tuning of the idle speed resulting in a smoother transition from off-idle
  • Large capacity float bowls eliminates fuel starvation
  • Large glass float-level sight windows for easy and safe fuel level adjustments
  • Dual feed fuel inlets for constant high volume fuel delivery
  • Quik Release non-stick gaskets for easy jet changes

Installation Instructions (PDF)

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

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