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Holley is proud to announce that the next generation of Mighty Demon carburetors have arrived. They are available in a full range of sizes and options for your street/strip car. They feature billet aluminum metering blocks, billet aluminum baseplates, large capacity fuel bowls complete with dual sight glasses, dual threaded inlets on each side, and internal baffling to prevent fuel slosh when you are on the track. For high horsepower street and race engines, the aluminum Mighty Demon delivers more power and performance for your race car.
Specifications:
| Barrel | Four |
| Booster Type | Down Leg |
| CFM | 850 |
| Choke | None |
| Description_ASC | Holley Performance Emission Code 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/1968 and newer Foreign manufactured vehicle |
| Description_DEF | Carburetor |
| Description_DES | Mighty Demon Carburetor |
| Description_EXT | Mighty Demon Carburetor; 850 cfm; Mechanical Secondary; Down Leg Booster; Aluminum; Throttle Bore 1.750 in.; |
| Description_FAB | 40 Percent Lighter |
| Description_FAB | All Aluminum Polished Construct.-Billet Metering Blocks/Baseplate |
| Description_FAB | Billet Baseplate w/Idle-Eze Allows Fine Tuning Of Idle Speed |
| Description_FAB | Changeable Idle/High-speed Air Bleeds/Power Valve Restrictions |
| Description_FAB | Fuel Bowls Have Dual Sight Glass Windows |
| Description_FAB | Fuel Bowls Have Dual Threaded Inlets On Each Side |
| Description_FAB | Fuel Bowls Have Internal Baffling For Improved Slosh Control |
| Description_FAB | Fuel Bowls/Main Body Redesigned for Sleeker Stylish Appearance |
| Description_FAB | Reengineered/Recalibrated-Better Drivability/Full Throttle Perf. |
| Description_FAB | Secondary Fuel Bowls Include Notched Floats And Jet Extensions |
| Description_INV | MIGHTY DEMON; 850 CFM-MS-DL |
| Description_LAB | Proposition 65 |
| Description_MKT | Holley is proud to announce that the next generation of Mighty Demon carburetors have arrived. They are available in a full range of sizes and options for your street/strip car. They feature billet aluminum metering blocks, billet aluminum baseplates, large capacity fuel bowls complete with dual sight glasses, dual threaded inlets on each side, and internal baffling to prevent fuel slosh when you are on the track. For high horsepower street and race engines, the aluminum Mighty Demon delivers more power and performance for your race car. |
| Description_SHO | Carburetor |
| Emission | Without EGR |
| finish | Shiny |
| Flange | Square Bore |
| Fuel Inlet | Dual |
| Fuel Type | Gasoline |
| height | 8.0 |
| High Speed Air Bleed | 33;33 |
| Idle Air Bleed Size | 73;73 |
| length | 13.6 |
| Material | Aluminum |
| Needle and Seat Size | 120;120 |
| Primary Main Jet | 86 |
| Primary Power Valve | 4.5 |
| Primary Pump Nozzle Size | 33 |
| Secondary Main Jet | 90 |
| Secondary Pump Nozzle Size | 33 |
| Secondary Type | Mechanical |
| Supercharged Application | No |
| Throttle Bore | 1.750 in. |
| Type | Automotive |
| Usage | Street/Strip |
| Venturii Size | 1.560 in. |
| WARNING CA Proposition 65 | Yes |
| WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| weight | 7.45 |
| width | 11.5 |









