The ALL NEW Street Demon™ Carburetor thru Marken Performance redefines the street carburetor with clean looks and ease of use! The Street Demon offers a stable idle, amazingly crisp throttle response and smooth performance. Its optimized calibration and dual mounting pattern make it Run–Ready™ for a large variety of engines and vehicles!
Thanks to the multiple exterior finishes of Hand-Polished, Ball Burnished, and the Polymer with Burnished Aluminum, there is a Street Demon that would look good on any engine.
The Polymer fuel bowl as Demon claims that it offers significant heat insulating benefits over the aluminum fuel bowl, and keeps fuel up to 20º cooler for optimum performance with modern fuels.
Demon has developed and even patented what they call their “Goggle Valve Secondary” (GVS) throttle plate. The patented GVS delivers over twice the airflow afforded by the primaries, so big power is there when you want it. Adjustments to the secondaries is a simple turn of a screw to tighten or loosen spring tension.
Available in 625 CFM (Part # 1901) and 750 CFM (Part # 1904) configurations, the Street Demon carburetors have all the cool visual design cues from the classic carbs but also uses the latest in computer aided design techniques and CNC manufacturing prowess.
- Part # 1901: 625 CFM air flow - ideal for use on most stock to mildly modified V8s
- Dual mounting bolt pattern - fits most aftermarket spread/square bore intake manifolds without adapter
- Electric Choke Management means easy cold starts
- Single fuel inlet for simple installation
- Aerospace Composite fuel bowl offers significant heat insulating benefits over aluminum fuel bowl - keeps fuel up to 20º cooler for optimum performance with modern fuels
- Integrated fuel bowl/main body design with gasket above fuel level and no plugged passages to eliminate all potential leak paths
- Small 1-3/8” primary throttle bores combined with proven Triple-Stack™ boosters deliver amazingly crisp throttle response and drivability, superior fuel atomization and improved fuel economy
- Goggle Valve Secondary (GVS™) throttle plate (Patent # D677755) delivers over twice the air flow of the primary bores for power you can hear and feel
- GVS™ makes total air flow 625 CFM while maintaining the crisp throttle response delivered by small primary bores
- Secondary air valve control - torsion spring valve control/adjustment permits seamless primary to secondary throttle response regardless of the throttle opening rate (unique contoured profile developed for better cylinder to cylinder fuel distribution)
- Smooth styling - patented timeless design fits modern as well as traditional themed vehicles (Patent No.: US D648,746 S)
- Developed from the ground up with great looks and ease of use in mind
- Easy to clean and maintain
- One-piece air horn assembly
- 2 Stage metering rods control easily accessible without carburetor disassembly or removal
- 4 optional vacuum step-up springs available to dial in hi-end performance
- Optional sets of metering rods available to refine calibration
- Multiple primary and secondary main jet orifice sizes available
- Patent pending mechanical design
- Integrated 700R4/200R4 transmission kickdown cable mounting location for proper shifts
- Ford A/T kickdown (does not work with AOD transmissions)
- Available TPS kit allows use with 4L60 and 4L80 transmissions
Street Demon Carb Video Install & Test Drive Video Street Rodder Article
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