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 driveable 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".



Note: Demon float bowls use special 9/16'' x 24 TPI inlet fittings. These are available in standard, filtered or swiveled sizes.

Features:

Billet Baseplate with new Idle-Eze

Billet Metering Blocks

Four-Corner Idle Circuitry

Large Capacity Float Bowls

Large Glass Float-Level Sight Windows

Power Valve Backfire Protection

Integral Hi-Flow Choke Tower Housing

Available in Mechanical or with Vacuum-Secondaries

Quick-change Vacuum-Secondary Spring Cover

''Quik Release'' Non-Stick Gaskets

Vacuum Fittings

Most common tuning parts interchange

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Need Help Choosing Your Demon?
Demon Selection Guide, Click Here

Billet Baseplate New ''Idle-Eze'' Baseplate eliminates the need to drill holes in the carburetor's butterflies or modifying the carburetor to get the proper idle speed and transition orientation.

Easy Valve Adjustment Valve is easily accessed with a screwdriver through the air cleaner stud hole. Can be fine-tuned after the throttle shaft position has been set

Fuel Bowl Demon float bowls are supplied complete with sight glasses, which permit float level adjustments without the risk of fuel spillage.

Metering Blocks CNC-machined metering blocks from billet aluminum prevent porosity and variations in the metering circuits