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Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body

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Specs
Sold in Quantity:
Each
Fuel Type:
Gasoline
Carburetor Barrels:
4
Fuel Inlet Type:
Single
Choke Type:
Electric
CFM:
625
Finish:
Ball Burnished
Secondary Type:
Air Valve
Material Type:
Polymer
MFG. Part #:
1901
Gasket(s) Included:
Yes
Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body
Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body
Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body
VIDEO
Street Demon 1901 625 CFM 4 Barrel Carburetor, Polymer Main Body

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Details

Reviews (4)

Q & A (4)

What's in the Box

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 straightforward four barrel 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!

  • 625 CFM airflow - ideal for use on most stock to mildly modified V8s
  • Dual mounting bolt pattern - fits any street 4bbl intake (square flange or spread bore)
  • Electric Choke Management means easy cold starts
  • Single fuel inlet for simple installation
  • Aerospace Composite fuel bowl offers significant heat insulation benefits over aluminum fuel bowl - keeps fuel up to 20° cooler for optimum performance with modern fuels
  • 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 reponse and drivability, superior fuel atomization and improved fuel economy
  • Goggle Valve Secondary (GVS™) throttle plate delivers over twice the aire 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 - 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)
  • Smooth styling - patented timeless design fits modern as well as traditional themed vehicles (Patent No.: US D648,746 S)
  • Developed from the ground up with great looks and ease of use in mind
  • Easy to clean and maintain
  • One-piece air horn assembly
  • 2 Stage metering rods control easily accessible without carburetor disassembly or removal
  • 4 optional vacuum step-up springs available to dial in hi-end performance
  • Optional sets of metering rods available to refine calibration
  • Multiple primary and secondary main jet orifice sizes available
  • Patent pending mechanical design
  • Integrated 700R4/200R4 transmission kickdown cable mounting location for proper shifts
  • Ford A/T kickdown(does not work with AOD transmissions)
  • Available TPS kit allows use with 4L60 and 4L80 transmissions

Customer Reviews

Rated 4.8 out of 5 by 4 reviewers.
RATING BREAKDOWN
4 reviews
5 Stars
3
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

keeker
Verified Purchaser
Verified Reviewer
Illinois

Street demon Is the very best Replacement carb on the market

August 02, 2016
installed on a stock chevy 350 and no adjustment necessary. smooth idle and trans kickdown poit saw right on. My 2nd demon and both performed great right out of the box!
Pros:
  • Features Are The Best
  • Smooth Idle From The Box
Cons:
  • None
Yes, I recommend this product.
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Dragula
Verified Purchaser
St George Utah

Ask and you shall receive. .

June 26, 2016
Swapped out my old q jet for this demon and WOW night and day.. this thing is great! More power smooth idle and less hesitation. . Love the look. the design keeps the fuel cold for more power easy set up. I didn't get any stickers to show off what I'm running under the hood..
Pros:
  • Good Price For Great Prod
  • Showed Up A Day Early
Cons:
  • No Cons
Yes, I recommend this product.
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Pampo
Verified Purchaser
Pueblo, CO

Ready rigtht out of the box!!

May 16, 2016
I replaced a Holley 4150 with a Street Demon 750 on my shop truck 440 engine
Pros:
  • No Ajustments Necessary
  • Easy To Install
Yes, I recommend this product.
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Phil
Verified Purchaser
Larned, KS

Awesome smooth

September 06, 2015
Replaced an old edelbrock 1406 on a warmed up 327 sbc with a 4speed and works just great so far.
Pros:
  • Little Adjustment Needed
  • Easy Installation
  • Looks Cool With The Black
  • Smooth Acceleration
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

4 questions : 4 answers

1 answers

Max fuel PSI? What is the max fuel PSI for this carb?

A1CCrash7
June 09, 2013

Max fuel PSI? What is the max fuel PSI for this carb?

Answers

June 11, 2013
Jason
Speed Demon carburetors require the same fuel pressure limits as the Holley or Edelbrock. If you have a fuel pump that has 6-8 psi pre set then you will be fine but if you have a high pressure and high volume pump over that then you will need to run a regulator to avoid pushing fuel past the needle and seat causing flooding of the engine. Regulator number 42712803 or 91012803 are a couple of examples of regulators and an inline pressure gauge such as number 91011581 or 1822175 can be used to dial in the proper fuel pressure.
1 answers

Will this fit on a Holley street dominator spread bore manifold ?

Dave
September 13, 2015

Will this fit on a Holley street dominator spread bore manifold ?

Answers

September 15, 2015
Wayne
Expert
This carburetor should bolt onto the Street Dominator just fine.
1 answers

Should I use the 625 cfm or the 750 cfm street demon carburetor on my Oldsmobile 455 engine with 9.1 compression and a stock cam?

Steve
Clinton, Missouri
June 07, 2016

Should I use the 625 cfm or the 750 cfm street demon carburetor on my Oldsmobile 455 engine with 9.1 compression and a stock cam?

Answers

June 08, 2016
John
Expert
Most big block owners opt for the 750 cfm carbs to carry the rpm up to the mid 5000 range. If looking at a daily driver and economy the 625 would suffice but would not cover the performance and rpm range.
1 answers

I have a stock 1966 mustang with a 289. Is a 625 cfm too much for a 289?

Eric
Hudson, wi
August 08, 2016

I have a stock 1966 mustang with a 289. Is a 625 cfm too much for a 289?

Answers

August 11, 2016
Craig
Expert
The 625 cfm carb would be a good size to work on your 289.
Page 1 of 1

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