All new for Demon, the new aluminum Road Demon carburetors are showing a new lighter, sleeker look and calibrated for Street Rods and mildly modified Street Machines and light trucks, the Road Demon™ is an impressive performer. With a remarkably smooth choke tower design and patented air entries, the Road Demon™ offers extremely smooth operation with strong throttle response. The Road Demon™ has the standard Demon carburetor features: Cast metering-blocks with adjustable jets and four-corner idle, plus large capacity fuel bowls with patented sight glasses for tuning ease. Available in 650-850 cfm models, the Road Demon™ is perfect for all engine sizes. The Road Demon™ targets mild performance engines from 302 to 460 cid, and rated at 250-500 horsepower. Road Demons come in mechanical and vacuum secondary models which makes them ideal for daily drivers as well as weekend cruising for a wide range of vehicles
Features:
All aluminum polished construction with die-cast metering blocks and base plate (Now 40% lighter than the original Demons!)
Fuel bowls and main body have been redesigned for a sleeker, more stylish appearance
Completely re-engineered and re-calibrated for better drivability and full throttle performance
Re-designed throttle lever with integrated Ford A/T, 700-R4, and Chrysler kick down options
Fuel bowls now have dual threaded inlets on each side, dual sight glass windows, and internal baffling for improved fuel slosh control
Changeable idle, high-speed air bleeds & power valve restrictions for precise tuning
New simple part numbering system: Start with RDA (Road Demon) Add the carburetor cfm size (650, 750, or 850) and then add the model suffix; MS (Mechanical Secondaries); VS (Vacuum Secondaries); AN (Annular Discharge Boosters)
Specs
Barrels
4
Billet Color
Shiny
Booster
Down Leg
Brand
Demon
Carburetor Use
Street
CFM
850
Choke
Electric
Circuit
2
Condition
New
Emission Code
3
Finish
Shiny
Fuel
Gasoline
Fuel Inlet
Dual
Fuel System
Carbureted
High Speed Air Bleed
33
Idle Air Bleed Size
73
Marine Use
No
Material
Aluminum
Model
Road Demon
Primary Main Jet
76
Primary Power Valve
6.5
Primary Pump Nozzle Size
33;33
Product Type
Carburetor
Secondaries
Mechanical
Secondary Main Jet
84
Supercharged Application
No
Throttle Bore
1.75
Warranty
Limited 90 Day
Part Number
RDA-850-MS
Emissions
3
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle
The following vehicles are considered Racing Use Only Vehicles:
Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
1966 and newer U.S. manufactured California Certified vehicles
1968 and newer U.S. manufactured Federally Certified vehicles
This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.
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