Designed to meet and exceed USCG carburetor standards, Mighty Marine Demons are for enthusiasts who need a carb to repower or upgrade their engine with cam profiles up to 260° duration at .050" lift. They offer strong throttle response, easy tuning, and great fuel economy, idle quality, and top end performance. Marine Demons share many features that make automotive Demons great.
Note: Demon float bowls use special 9/16" x 24 TPI inlet fittings available in standard, filtered, or swiveled sizes.
Highlights650, 750, 825, or 850 cfmContemporary designJ-Tube Bowl VentsSealed Throttle ShaftsRemovable Billet BaseplateBillet Metering BlocksBuilt-In Power Valve Blowout ProtectionFour-Corner Idle AdjustmentLarge-Capacity Float Bowls with Sight GlassesMost common tuning parts interchange from other manufacturers
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Click here.Billet Baseplate
The first large carb with removable baseplate. Billet baseplates on applicable Demon carbs are virtually unbreakable, unlike their cast counterparts. | Air Intake
A new die-cast technique provides the most accurate method of producing concentric venturi without misalignment or shift. | Fuel Bowl
Demon float bowls come complete with sight glasses, which permit float level adjustments without risk of fuel spillage. | Metering Blocks
CNC-machined metering blocks from billet aluminum prevent porosity and variations in the metering circuits. |
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