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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
$712.99 ea
NEWARRIVING SOONEstimated Ship Date 12/10/2024 (If Ordered Today)19 Available from HOLLEY PERFORMANCE PRODUCTS as of 11/22/2024
Model: 3998659
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
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[More Info]
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 Years Engine
Ford Mustang II 1975 2.8L / 171 / V6
5.0L / 302 / V8
Ford Mustang II 1976 2.8L / 171 / V6
5.0L / 302 / V8
Ford Mustang II 1977 2.8L / 171 / V6
5.0L / 302 / V8
Ford Mustang II 1978 2.8L / 171 / V6
5.0L / 302 / V8
Ford Mustang 1964 4.3L / 260 / V8
4.7L / 289 / V8
Ford Mustang 1965 4.7L / 289 / V8
Ford Mustang 1966 4.7L / 289 / V8
Ford Mustang 1967 6.4L / 390 / V8
4.7L / 289 / V8
Ford Mustang 1968 7.0L / 428 / V8
6.4L / 390 / V8
7.0L / 427 / V8
5.0L / 302 / V8
4.7L / 289 / V8
Ford Mustang 1969 7.0L / 428 / V8
7.0L / 429 / V8
6.4L / 390 / V8
5.8L / 351 / V8
5.0L / 302 / V8
Ford Mustang 1970 7.0L / 428 / V8
7.0L / 429 / V8
5.8L / 351 / V8
5.0L / 302 / V8
Ford Mustang 1971 7.0L / 429 / V8
5.8L / 351 / V8
5.0L / 302 / V8
Ford Mustang 1972 5.8L / 351 / V8
5.0L / 302 / V8
Ford Mustang 1973 5.8L / 351 / V8
5.0L / 302 / V8
Ford Mustang 1979 2.8L / 171 / V6
5.0L / 302 / V8
Mercury Capri 1976 2.8L / 171 / V6
Mercury Capri 1977 2.8L / 171 / V6
Mercury Capri 1979 2.8L / 171 / V6
5.0L / 302 / V8
Mercury Cougar 1967 4.7L / 289 / V8
6.4L / 390 / V8
Mercury Cougar 1968 5.0L / 302 / V8
4.7L / 289 / V8
7.0L / 428 / V8
7.0L / 427 / V8
6.4L / 390 / V8
Mercury Cougar 1969 5.0L / 302 / V8
7.0L / 429 / V8
7.0L / 428 / V8
5.8L / 351 / V8
6.4L / 390 / V8
Mercury Cougar 1970 7.0L / 429 / V8
7.0L / 428 / V8
5.8L / 351 / V8
Mercury Cougar 1971 7.0L / 429 / V8
5.8L / 351 / V8
Mercury Cougar 1972 5.8L / 351 / V8
Mercury Cougar 1973 6.6L / 400 / V8
5.8L / 351 / V8
Mercury Cougar 1974 6.6L / 400 / V8
5.8L / 351 / V8
Mercury Cougar 1975 6.6L / 400 / V8
5.8L / 351 / V8
Mercury Cougar 1976 6.6L / 400 / V8
5.8L / 351 / V8
Mercury Cougar 1977 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
Mercury Cougar 1978 5.0L / 302 / V8
6.6L / 400 / V8
5.8L / 351 / V8
Mercury Cougar 1979 5.0L / 302 / V8
5.8L / 351 / V8
Mercury Cougar 1980 5.0L / 302 / 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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