Three Plain 9 Super 7® Carbs to 4-Bbl Intake Manifold Adapter Kit

#9251180

Three Plain 9 Super 7® Carbs to 4-Bbl Intake Manifold Adapter Kit

Name: Three Plain 9 Super 7® Carbs to 4-Bbl Intake Manifold Adapter Kit
Brand: Speedway Motors
SKU: 9251180
Price: 1439.99 USD
Availability: InStock
Rating: 4.3 (3 reviews)

3 Reviews

9 Questions

This kit is not recommended for use with Ethanol fuels.
The tri-power kit enables you to install three Speedway 9 Super 7® carbs on your standard 4 barrel intake manifold.
Kit includes three carbs, the adapter, air cleaners, a progressive linkage kit, fuel block, fittings, and a red fuel line. Assembly is required.

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Product Summary

Universal Fit, Three Carburetor Quantity, Natural

This kit is not recommended for use with Ethanol fuels.
The tri-power kit enables you to install three Speedway 9 Super 7® carbs on your standard 4 barrel intake manifold.
Kit includes three carbs, the adapter, air cleaners, a progressive linkage kit, fuel block, fittings, and a red fuel line. Assembly is required.
Please be aware that this kit is not compatible with HEI distributors due to clearance issues. It must be used in conjunction with a small-diameter-based distributor.
This kit gained recognition when it was featured on Season 4 of Car Masters: Rust to Riches during the Zephyr Gotham Garage Build.

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Key Specs

MFG. Part #	9251180
Brand	Speedway Motors
Carburetor Quantity	Three
Carburetor Barrels	3 x 2-Barrel

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Installation Details

Intake Manifold/Carburetor Kits Installation Instructions (9251180)

Carburetors Installation Instructions (91511655)

Determining the Best Performance Carburetor For Your Application

Throttle Linkage Installation Instructions (5606181)

Installation Tips

9 Super 7® Primary Carbs -

Features .045" main metering jets and a number 65 power valve, which is the same as a stock 97 carb.
Replacement jet access plug gasket use # 91011542, replacement needle and seat gasket use # 91011543.
Includes base gasket.
The 9 Super 7® ® will operate suitably with fuel pressures ranging from 1-1/2 psi to 4 psi, with a desired setting of 2-1/2 psi to 3 psi. Fuel pressure from 4 psi to 7 psi will cause the carburetor to run excessively rich and may cause flooding. Flooding or leaks caused by excessive fuel pressure do not indicate a faulty carburetor. A fuel regulator such as # 560-58500 must be utilized in order to keep proper fuel pressure at the 1-1/2 to 4 psi range.
Our independent tests produced these flow numbers:
- 3" of Vacuum - 60 CFM
- 10" of Vacuum - 110 CFM
- 15" of Vacuum - 136 1/2 CFM
- 28" of Vacuum - 184 CFM

Learn more about setting up 3 x 2 carbs using the 9 Super 7® in Street Rodder Magazine's tech article Speedway Motors Stromberg 97 - Tri-Power In Under An Hour.

See what other industry experts are saying about the 9 Super 7® here.

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Speedway Motors 9251180 Details

This tri power kit allows you to put three Speedway 9 Super 7® carbs on your standard 4 bbl intake manifold. It includes three carbs, the adapter, air cleaners, progressive linkage kit, fuel block, fittings and red fuel line. Assembly required.

Note: Kit will NOT work with HEI distributors due to clearance issues. This system must be used in conjunction with a small diameter based distributor.

Additional Note - There are NO vacuum ports on these carbs so you may need to tap into the manifold for a vacuum source.

Overall Height - 11 7/16" total from the bottom of the adapter to the top of the air cleaners.
Adapter manifold top 3x2 dimension is 4” wide by 13-11/16” long
Adapter manifold is 2-3/16” tall bottom to top without the gaskets
4 barrel bolt pattern is 5-1/8” side to side and 5-5/8” front to rear
2 barrel bolt pattern is 3-1/4” side to side by 1-7/8” front to rear
Progressive linkage included
It does NOT come with the intake manifold to adapter gasket. 4 Barrel Carburetor Base Gasket

The 9 Super 7® makes setting up a multiple carburetor induction system easier than when Strombergs were available new. All that's required to do so with our kits is a Uni-Syn syncing tool and a little patience. Our 3 Carb kits come with one primary carburetor and two secondary carburetors while the 2 Carb kits are both primary carbs. See our for more information on using the 9 Super 7® in a 2x2 or 3x2 carb set-up.

Three Deuce carburetor setups come with two "secondary" carbs for front and rear intake position and one "primary" carb for central/middle position
All-new tooling for crisp, flawless castings
New aluminum base assembly allows for cooler fuel temps and better fuel efficiency as compared to the original cast iron design
Stainless steel screws and hardware
Original troublesome needle and seat replaced by a Grose-style fuel inlet valve to better cope with higher fuel pressures and improved high speed running
Will not stick or dribble like the old Viton-tipped needle and seat setups
Extended brass throttle shaft to simplify multi-carb linkage
Primary Carb - (1) Middle Position
- Choke assembly, accelerator pump, and jets have all been faithfully retained and accept standard Stromberg parts
Secondary Carb - (2) Front and Rear Position
- Special base plate with no idle circuits or choke linkage
- Special butterflies and shafts installed
- Works best with progressive linkage
- Idle only off the center or main carburetor
- No more plug foul

Note: The secondary carbs have NO choke, and they have NO idle system.

9 Super 7® Primary Carbs -

Features .045" main metering jets and a number 65 power valve, which is the same as a stock 97 carb.
Replacement jet access plug gasket use # 91011542, replacement needle and seat gasket use # 91011543.
Includes base gasket.
The 9 Super 7® ® will operate suitably with fuel pressures ranging from 1-1/2 psi to 4 psi, with a desired setting of 2-1/2 psi to 3 psi. Fuel pressure from 4 psi to 7 psi will cause the carburetor to run excessively rich and may cause flooding. Flooding or leaks caused by excessive fuel pressure do not indicate a faulty carburetor. A fuel regulator such as # 560-58500 must be utilized in order to keep proper fuel pressure at the 1-1/2 to 4 psi range.
Our independent tests produced these flow numbers:
- 3" of Vacuum - 60 CFM
- 10" of Vacuum - 110 CFM
- 15" of Vacuum - 136 1/2 CFM
- 28" of Vacuum - 184 CFM

Learn more about setting up 3 x 2 carbs using the 9 Super 7® ® in Street Rodder Magazine's tech article Speedway Motors Stromberg 97 - Tri-Power In Under An Hour.

See what other industry experts are saying about the 9 Super 7® here.

Charts

9 Super 7® Linkage Instructions (PDF)

915-11657 9 Super 7® Carb Instructions (PDF)

Multiple Carburetor Tech Tip (JPG)

Guides & Documents

Intake Manifold/Carburetor Kits Installation Instructions (9251180)

Intake Manifold/Carburetor Kits Technical Information (9251180)

Carburetors Installation Instructions (91511655)

Determining the Best Performance Carburetor For Your Application

Throttle Linkage Installation Instructions (5606181)

Speedway Motors 9251180 Specifications

KEY SPECS
MFG. Part #	9251180
Brand	Speedway Motors
Carburetor Quantity	Three
Carburetor Barrels	3 x 2-Barrel

GENERAL
Carburetor Flange Type	2-Barrel 3-Bolt
Choke Type	Manual
Fuel Type	Gasoline
Intake Manifold Material	Aluminum
Intake Manifold Finish	Natural
Carburetor Finish	Natural
Air Cleaner Type	Round Helmet Style
Air Cleaner Finish	Chrome
Sold in Quantity	Kit

Ratings & Reviews

4.3

3 Reviews

Overall Assessment

Customers appreciate our product for its aesthetic appeal and performance in classic vehicles like the Ford 1932 model. Misfit issues were noted, so using an adapter was necessary for a Ford 5.0L. Some customers also experienced fuel leaks from the fuel distributor ports and rear carburetor. These issues were mitigated by purchasing a specific intake. Critiques on the throttle shaft & arm holes also suggest adjustments for easier installation. However, despite these issues, users recommend it for its acceleration and it's being a show-stealer at car events.

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4.3

3 reviews

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Great product, everything needed is included.

5.0

4 years ago

Paul

Port St Lucie, FL

Verified

Perfect look for my 1932 Ford. Love it.

Would Recommend

LOOKS REALLY COOL AND RUNS GREAT.

4.0

10 years ago

Mike the Mechanic Auto

Tucson AZ.

Verified

This assy. didn't fit my ford 5.0L. The front fuel bowel hit on the distributor,I had to use a 2 inch adapter for the assy.to fit, but don't like my fuel bowel hanging over the distributor. I decided to spend $430.00 a buy the intake for the ford 5.0L. I also had a lot of fuel leaks from the fuel distributor ports and rear carb. leaking from the bottom fuel bowel jet plug. The adapter should have been built with the carb closer to gather for a better fit, but I'm really happy with have the three duce carbs on my 31 A.

Would Recommend

BIG ATTRACTION AT THE CAR SHOW....

4.0

14 years ago

MAUIMIKEB

HAWAII.

Verified

INSTALLED ON A 283 SBC. IT HAS GOOD ACCELERATION. THE THROTTLE SHAFT & ARM HOLES OF THE 9 SUPER 7 CARB SHOULD BE DRILLED AT A 45 DEGREE ANGLE TO ACCOMMODATE THE SET SCREW THROUGH THE SHAFT & ARM. A SPLINE SHOULD ALSO BE ADDED TO SHAFT & LENGTHENED SO THE NUTS ON THE LINKAGE CAN CLEAR THE CARB HOUSING.

Would Recommend

Showing 3 of 3 reviews

Questions & Answers

9 Questions • 9 Answers

Sort Questions

Will I need to order an extra gasket for the throttle cable plate?

by Old ford

• 8 years ago

1 answer

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is there a choke kit for the main carb that you can recommend both manuel and electric?

by linedude

• 10 years ago

1 answer

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Vucuum ports for auto transmissions My current set up is an Edelbrock, 4bbl 1406 carb. there is a vacuum port that has a tube going to the TH350 AT for shift control. where are the vacuum ports on this set up???? I don't see any in the photos.

by John

• 11 years ago

1 answer

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What is the part number of the air filter elements and availability ?

by Linedude

• 12 years ago

1 answer

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Will this fit my elderbrock 75014 air gap 4 barrel manifold?

by Linedude

• 12 years ago

1 answer

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will it fit on a ford 302

by bradan216455

• 12 years ago

1 answer

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What is the CFM of the 9 Super 7? Trying to determine whether I need 2 or 3 for my 302.

by DirtyDave

• 12 years ago

1 answer

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Will the back carburator clear the HEI distributor? 1998 350 SBC with Edelbrock Preformer intake.

by Herbie

• 13 years ago

1 answer

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Hi ! What is the height bottom to top ?? Thanks intake ...... carb ......... adapter ...... air cleaner .......

by hudsonboy

• 13 years ago

1 answer

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9 of 9 questions shown