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Road Demon 4282010VE 625 CFM 4 Barrel Carburetor

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Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Natural
Fuel Type:
Gasoline
Carburetor Barrels:
4
Secondary Type:
Vacuum
Fuel Inlet Type:
Dual
Choke Type:
Electric
CFM:
625
MFG. Part #:
4282010VE
Gasket(s) Included:
Yes
Road Demon 4282010VE 625 CFM 4 Barrel Carburetor

Click image to enlarge

Details

Reviews (1)

Q & A (6)

What's in the Box

Info

Styled and calibrated for Street Rods and mildly modified Street Machines and light trucks, the Road Demon™ is an impressive performer. With a remarkably smooth choke tower design, vacuum secondaries and patented air entries, the Road Demon™ offers extremely smooth operation with strong throttle response. The Road Demon™ has the standard Demon carburetor features: Max–Density Cast metering–blocks with adjustable jets and four–corner idle, a billet baseplate, plus large capacity fuel bowls with patented sight glasses for tuning ease.

Perfect for small displacement V8s or V6 engines, the Road Demon™ 625 targets mild performance engines from 302 to 400 cid, and rated at 250–350 horsepower. An ideal carb for daily drivers as well as weekend cruising for a wide range of vehicles.

  • Max-Density Cast Rib-Reinforced Baseplate
  • Max-Density Cast Metering Blocks
  • Four-Corner Idle Circuitry
  • Large Capacity Float Bowls
  • Large Glass Float-Level Sight Windows
  • Integral Hi-Flow Choke Housing
  • Electric Choke Included
  • Dual-feed Inlet
  • Vacuum Secondary Operation
  • Power Valve Backfire Protection
  • "Quik Release" Non-Stick Gaskets
  • Vacuum Fittings
  • Most common tuning parts interchange from other manufacturers (jets, power valves, gaskets, etc.)
  • Quick-change Vacuum-Secondary Spring Cover 

Road Demon 4 Barrel Carburetor Installation Instructions (PDF) 

Application

We recommend the Road Demon 625 for Mild Performance and Towing applications with 302-400 c.i. V-8 engines.

Works great with camshafts under 220° duration @ .050". 

Customer Reviews

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

SPEED DEMON
EL MIRAGE AZ

I WOULD BUY THIS PRODUCT AGAIN

June 20, 2010
HAVE NOT ROAD TESTED CAR YET. IT IS NOT FINSIHED, WILL KEEP YOU INFORMED. BUT HAPPY SO FAR.
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

6 questions : 6 answers

1 answers

settig my carb I have a 350 ci chevy with a demon carb when I hook up the vacuum line to the front I get good low rpm performance but not at high rpm when I put the vacuum line on the rear I have a small miss and not as good performance but high rpm it runs great any ideas

3wjim
ohio
August 26, 2014

settig my carb I have a 350 ci chevy with a demon carb when I hook up the vacuum line to the front I get good low rpm performance but not at high rpm when I put the vacuum line on the rear I have a small miss and not as good performance but high rpm it runs great any ideas

Answers

August 27, 2014
EricM
I believe you are talking about which vacuum port you are connecting the vacuum advance to. If so then you will need to connect it to the front vacuum port on the passenger side. That is a ported vacuum source which is what you need for a vacuum advance on a small block Chevy engine. I suggest that you check the ignition timing on your engine as well as determine how much mechanical and vacuum advance your distributor is providing. It sounds like the issue lies in one of those areas.
1 answers

square or spread bore?

jims
kcmo
November 02, 2013

square or spread bore?

Answers

November 04, 2013
Jason
The road demon 4 barrel carburetor is a square bore flange
1 answers

how do i hook up the elec/choke i have a small block mopar 360 with a mild build . it's in a 72 challenger and i never hook'ed up a elec choke before any help would be true'ly appr, thank's

shawnschallenger
wi
March 22, 2011

how do i hook up the elec/choke i have a small block mopar 360 with a mild build . it's in a 72 challenger and i never hook'ed up a elec choke before any help would be true'ly appr, thank's

Answers

April 01, 2011
Tech Support
It is very easy to hook up an electric choke. There should be a push-on connector on the round, plastic cover for the choke mechanism on the passenger side of your carburetor. Just hook up an insulated, copper wire (around 14 gauge should be fine) to this terminal and connect the other end of the wire to a place that has 12 volt power when your key switch is in the “run” or “on” position. You can run this wire all the way to the ignition switch if you want, or you can just go to the + (positive) side of your ignition coil (before the ballast resistor, if your car has one). You can put a 5 or 7 amp fuse in this line if you want to be safe. If your distributor has the coil in the cap (or a similar type of electronic ignition) like a Chevy, just hook the wire to the terminal on the distributor marked “IGN”. I hope this answers your question.
1 answers

CanI install a manual choke on this carb?

March 05, 2011

CanI install a manual choke on this carb?

Answers

March 09, 2011
Jason
Yes, the electric choke is just an add-on piece.
1 answers

does it have a powerbrake hook up

auxvasse missouri
October 11, 2011

does it have a powerbrake hook up

Answers

October 12, 2011
John
Part # 91012040 This carburetor does not have the large power brake port and would require using the port on the intake manifold. If the intake does not have the port available it would necessitate drilling and tapping the intake for the correct fitting.
1 answers

Do you need a kick down bracket to bolt to the carbrator for proper tv cable geometry? Transmission is a 700r4

Zach
September 04, 2015

Do you need a kick down bracket to bolt to the carbrator for proper tv cable geometry? Transmission is a 700r4

Answers

September 04, 2015
Andy
Expert
We can provide you with a bracket and cable for your application when you upgrade to the Street Demon carburetor. The bracket is a Pt # 491TCB40SD. The transmission kick-down cable would be a Pt # 49102700. We can also provide an accelerator cable. We will need to know what your vehicle application is for the throttle cable.
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