You are bidding on a Brand New Holley 625 CFM Street Demon Carburetor, with Electric Choke & Vacuum Secondaries (Part #1900)

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!

NOTE: 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.

Features:

  • Ball burnished shiny aluminum finish
  • Designed for use on most stock to mildly modified V8 engines
  • 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
  • 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)
  • 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
  • 625 CFM specific calibration kit available for adjustments
  • Available TPS kit allows use with 4L60 and 4L80 transmissions

Specs:

  • Barrels: 4
  • Booster: Triple Stack
  • Brand: Demon
  • CFM: 625
  • Choke: Electric
  • Emission Code: 3
  • Finish: Shiny
  • Fuel: Gasoline
  • Fuel Inlet: Single
  • Material: Aluminum
  • Metering Rod Size: 60/52
  • Model: Street Demon
  • Primary Main Jet: 80
  • Primary Pump Nozzle Size: 31
  • Product Type: Carburetor
  • Secondaries: Vacuum
  • Secondary Main Jet: 80
  • Step up Spring: Green
  • Supercharged Application: No
  • Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port

You can view and download the complete assembly instruction booklet for this carburetor here

You can view and download the Carburetor Numerical Listing here

You can view and download the Important Notice for Holley's 625 CFM Demon Carburetor here

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Shipping:

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