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Demon Fuel Systems 625 CFM Street Demon Carburetor 1900

Demon Fuel Systems 625 CFM Street Demon Carburetor 1900
Demon Fuel Systems 625 CFM Street Demon Carburetor 1900Demon Fuel Systems 625 CFM Street Demon Carburetor 1900Demon Fuel Systems 625 CFM Street Demon Carburetor 1900Demon Fuel Systems 625 CFM Street Demon Carburetor 1900Demon Fuel Systems 625 CFM Street Demon Carburetor 1900Demon Fuel Systems 625 CFM Street Demon Carburetor 1900Demon Fuel Systems 625 CFM Street Demon Carburetor 1900
$694.99 ea
NEWARRIVING SOONEstimated Ship Date 10/03/2024 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 09/16/2024
Model: 3998659
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
WICKED POWER! The ALL NEW Street Demon® redefines the street carburetor with clean looks and ease of use! The Street Demon offers enthusiasts a straight forward carburetor designed to deliver 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!
Features:
  • Ball burnished shiny aluminum finish
  • Designed for use on most stock to mildly modified V8s
  • Developed from the ground up with smooth styling - patented timeless design fits modern as well as traditional themed vehicles (Patent No.: US D648,746 S)
  • One piece airhorn is easy to clean and maintain
  • Dual mounting bolt pattern - fits most aftermarket spread/square bore intake manifolds without adapter
  • 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
  • 2 Stage metering rods control easily accessible without carburetor disassembly or removal
  • Single fuel inlet for simple installation
  • Integrated 700R4/200R4 transmission kickdown cable mounting location as well as Ford A/T kickdown for proper shifts
  • Patent pending mechanical design
  • 625 CFM specific calibration kit available for tuning and altitude adjustments
  • Available TPS kit allows use with 4L60 and 4L80 transmissions
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.
Installation Notes:
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.

Downloads:

Download Name File Size
techlibrary_carb_numerical_listing.pdf611.91KB
street_demon.pdf2.45MB
streetdemonarticle.pdf4.83MB
lit701rev10.pdf1.51MB
lit721.pdf36.13KB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine
Chevrolet Bel Air Base 1960 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Bel Air Base 1961 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Bel Air Base 1962 4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Bel Air Base 1963 4.6L / 283 / V8
5.3L / 327 / V8
7.0L / 427 / V8
Chevrolet Bel Air Base 1964 4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Bel Air Base 1965 4.6L / 283 / V8
5.3L / 327 / V8
6.5L / 396 / V8
Chevrolet Bel Air Base 1966 4.6L / 283 / V8
5.3L / 327 / V8
6.5L / 396 / V8
7.0L / 427 / V8
Chevrolet Bel Air Base 1967 4.6L / 283 / V8
5.3L / 327 / V8
6.5L / 396 / V8
7.0L / 427 / V8
Chevrolet Bel Air Base 1968 5.3L / 327 / V8
5.0L / 307 / V8
6.5L / 396 / V8
7.0L / 427 / V8
Chevrolet Bel Air Base 1969 5.7L / 350 / V8
5.3L / 327 / V8
6.5L / 396 / V8
7.0L / 427 / V8
Chevrolet Bel Air Base 1970 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
6.6L / 402 / V8
Chevrolet Bel Air Base 1971 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
6.6L / 402 / V8
Chevrolet Bel Air Base 1972 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
6.6L / 402 / V8
Chevrolet Bel Air Base 1973 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Bel Air Base 1974 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Bel Air Base 1975 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Biscayne Base 1960 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Biscayne Base 1961 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Biscayne Base 1962 4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1963 7.0L / 427 / V8
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1964 4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1965 6.5L / 396 / V8
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1966 6.5L / 396 / V8
7.0L / 427 / V8
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1967 6.5L / 396 / V8
7.0L / 427 / V8
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1968 6.5L / 396 / V8
7.0L / 427 / V8
5.0L / 307 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1969 6.5L / 396 / V8
7.0L / 427 / V8
5.7L / 350 / V8
5.3L / 327 / V8
Chevrolet Biscayne Base 1970 5.7L / 350 / V8
6.6L / 400 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet Biscayne Base 1971 5.7L / 350 / V8
6.6L / 400 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet Biscayne Base 1972 5.7L / 350 / V8
6.6L / 400 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet Biscayne Fleetmaster 1960 5.7L / 348 / V8
4.6L / 283 / V8
Chevrolet Brookwood Base 1960 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Brookwood Base 1961 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Brookwood Base 1969 5.0L / 307 / V8
5.3L / 327 / V8
7.0L / 427 / V8
6.5L / 396 / V8
5.7L / 350 / V8
Chevrolet Brookwood Base 1970 6.6L / 402 / V8
6.6L / 400 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet Brookwood Base 1971 5.0L / 307 / V8
6.6L / 402 / V8
6.6L / 400 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet Brookwood Base 1972 5.0L / 307 / V8
6.6L / 402 / V8
6.6L / 400 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet Caprice Base 1966 6.5L / 396 / V8
7.0L / 427 / V8
5.3L / 327 / V8
4.6L / 283 / V8
Chevrolet Caprice Base 1967 6.5L / 396 / V8
7.0L / 427 / V8
5.3L / 327 / V8
4.6L / 283 / V8
Chevrolet Caprice Base 1968 6.5L / 396 / V8
7.0L / 427 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Chevrolet Caprice Base 1969 6.5L / 396 / V8
7.0L / 427 / V8
5.3L / 327 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Chevrolet Caprice Base 1970 6.6L / 400 / V8
5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 402 / V8
Chevrolet Caprice Base 1971 6.6L / 400 / V8
5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
Chevrolet Caprice Base 1972 6.6L / 400 / V8
5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
Chevrolet Caprice Classic Estate 1976 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Caprice Classic Estate 1977 5.0L / 305 / V8
Chevrolet Caprice Classic Estate 1978 5.0L / 305 / V8
Chevrolet Caprice Classic Landau 1976 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Caprice Classic Landau 1977 5.0L / 305 / V8
Chevrolet Caprice Classic Landau 1978 5.0L / 305 / V8
Chevrolet Caprice Classic Landau 1979 5.0L / 305 / V8
Chevrolet Caprice Classic Sport 1975 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Caprice Classic Sport 1976 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Caprice Classic Sport 1979 5.0L / 305 / V8
Chevrolet Caprice Classic 1973 5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet Caprice Classic 1974 6.6L / 400 / V8
5.7L / 350 / V8
7.4L / 454 / V8
Chevrolet Caprice Classic 1975 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Caprice Classic 1976 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Caprice Classic 1977 5.0L / 305 / V8
Chevrolet Caprice Classic 1978 5.0L / 305 / V8
Chevrolet Caprice Classic 1979 5.0L / 305 / V8
Chevrolet Caprice Estate Wagon 1975 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Caprice Estate 1973 5.7L / 350 / V8
5.0L / 307 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Caprice Estate 1974 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Estate Base 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
6.5L / 396 / V8
7.0L / 427 / V8
Chevrolet Estate Base 1970 5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet Impala Base 1960 5.7L / 348 / V8
4.6L / 283 / V8
Chevrolet Impala Base 1961 5.7L / 348 / V8
4.6L / 283 / V8
Chevrolet Impala Base 1962 4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1963 4.6L / 283 / V8
7.0L / 427 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1964 4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1965 6.5L / 396 / V8
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1966 6.5L / 396 / V8
4.6L / 283 / V8
7.0L / 427 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1967 6.5L / 396 / V8
4.6L / 283 / V8
7.0L / 427 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1968 6.5L / 396 / V8
5.0L / 307 / V8
7.0L / 427 / V8
5.3L / 327 / V8
Chevrolet Impala Base 1969 6.5L / 396 / V8
5.0L / 307 / V8
7.0L / 427 / V8
5.3L / 327 / V8
5.7L / 350 / V8
Chevrolet Impala Base 1970 5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1971 5.0L / 307 / V8
5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1972 5.0L / 307 / V8
5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1973 5.0L / 307 / V8
5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1974 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1975 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1976 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Base 1977 5.0L / 305 / V8
Chevrolet Impala Base 1978 5.0L / 305 / V8
Chevrolet Impala Base 1979 5.0L / 305 / V8
Chevrolet Impala Custom Landau 1976 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Custom 1975 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Impala Custom 1976 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Impala Custom 1977 5.0L / 305 / V8
Chevrolet Impala Landau 1977 5.0L / 305 / V8
Chevrolet Impala Landau 1978 5.0L / 305 / V8
Chevrolet Impala Landau 1979 5.0L / 305 / V8
Chevrolet Impala SS 1964 4.6L / 283 / V8
Chevrolet Impala SS 1965 6.5L / 396 / V8
Chevrolet Impala SS 1966 6.5L / 396 / V8
4.6L / 283 / V8
7.0L / 427 / V8
Chevrolet Impala SS 1967 6.5L / 396 / V8
4.6L / 283 / V8
7.0L / 427 / V8
Chevrolet Impala S 1976 7.4L / 454 / V8
6.6L / 400 / V8
Chevrolet Impala Sport 1975 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Impala Sport 1976 6.6L / 400 / V8
7.4L / 454 / V8
Chevrolet Impala Sport 1979 5.0L / 305 / V8
Chevrolet Nomad Base 1960 5.7L / 348 / V8
4.6L / 283 / V8
Chevrolet Nomad Base 1961 5.7L / 348 / V8
4.6L / 283 / V8
Chevrolet Parkwood Base 1960 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Parkwood Base 1961 4.6L / 283 / V8
5.7L / 348 / V8
Chevrolet Townsman Base 1969 5.3L / 327 / V8
5.0L / 307 / V8
7.0L / 427 / V8
5.7L / 350 / V8
6.5L / 396 / V8
Chevrolet Townsman Base 1970 7.4L / 454 / V8
6.6L / 400 / V8
6.6L / 402 / V8
5.7L / 350 / V8
Chevrolet Townsman Base 1971 5.0L / 307 / V8
7.4L / 454 / V8
6.6L / 400 / V8
6.6L / 402 / V8
5.7L / 350 / V8
Chevrolet Townsman Base 1972 5.0L / 307 / V8
7.4L / 454 / V8
6.6L / 400 / V8
6.6L / 402 / V8
5.7L / 350 / V8

Specifications:

Barrels 4
Booster Triple Stack
Booster Type Triple Stack
Carburetor Use Street
CFM 625
Choke Electric
Condition NEW
Emission Code 3
Finish Shiny
Fuel Gasoline
Fuel Inlet Single
Marine Use No
Material Aluminum
Metering Rod Size 60/52
Model Street Demon
Part Type Carburetor
Primary Main Jet 80
Primary Pump Nozzle Size 31
Product Type Carburetor
Proposition 65 www.P65Warnings.ca.gov
Secondaries Vacuum
Secondary Main Jet 80
Step Up Spring Green, Green
Supercharged Application No
Vacuum Ports 1 timed (spark) port, 2 full, and 1 PCV port
Warranty Limited 90 Day

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