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
• Secondary air valve control with torsion spring allows smooth primary to secondary throttle transition, optimizing fuel distribution across cylinders for improved throttle response at any opening rate.
• 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

About Demon

Get classic modular performance when you shop for Demon carburetors at Holley.com. We offer numerous models for countless applications.

• Replacement Electric Choke Cap Kit

  Replacement Electric Choke Cap For Carburetor Models 2300 4150 4160 4010 4011 Also Fits Choke kits 45-223 & 45-224. Includes new Choke cap gasket.

  Part# 45-258

  $49.37

  Qty: 

  Add To Cart
• Carburetor Rebuild Kit - Street Demon 625

  Every gasket and seal you need to rebuild Street Demon 625 carburetors

  Part# 1920

  $60.35

  Qty: 

  Add To Cart
• Demon Air Cleaner 14" Chrome

  Demon Branded 14" Chrome Air Filter with paper filter element

  Part# 786004

  $79.70

  Qty: 

  Add To Cart
• Kickdown Spring & Perch Kit

  Developed specifically for Ford automatic transmissions and Street Demon carburetors

  Part# 1954

  $38.82

  Qty: 

  Add To Cart
• Street Demon 625 Calibration Kit

  The exact metering rods, jets, and step-up springs to fine-tune your application

  Part# 1921

  $131.35

  Qty: 

  Add To Cart
• GM Throttle Cable Adapter Lever

  Designed specifically for Street Demon, Sniper EFI TBI and rod-style throttle linkages

  Part# 1952

  $26.95

  Qty: 

  Add To Cart
• Street Demon TPS Kit

  Includes TPS switch, billet bracket, connector rod and adapter lever

  Part# 1951

  $276.25

  Qty: 

  Add To Cart
• Street Demon Idle Kick-Up Solenoid

  Fast-idle solenoid comes complete with its own bracket

  Part# 1950

  $193.45

  Qty: 

  Add To Cart
• Demon Needle & Seat

  Developed specifically for Street Demon carburetors

  Part# 1927

  Qty: 

  Add To Cart
• Street Demon Billet Throttle Bracket

  All stainless steel hardware

  Part# 1958

  Qty: 

  Add To Cart
• Street Demon Billet Detent Bracket

  Ideal for Street Demon throttle cable brackets (part number 1958)

  Part# 1959

  Qty: 

  Add To Cart

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) 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

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