Plain 9 Super 7® 2x2 Carb/Offy intake Kit, 1949-53 Flathead

This kit uses Offenhauser Super Dual Flathead Ford intake with Speedway's 9 Super 7® carbs. It includes two carbs, the intake, air cleaners, linkage kit, fuel block, fittings and red fuel line. Assembly required. 

The 9 Super 7® Carb 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. Be sure to include the Secondary 9 Super 7® when installing 3-carb setups. 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. 

On the primary 9 Super 7® carb the throttle shaft extends from carb body .983" and has the hole on the end to pin the linkage. There is a brass sleeve that the throttle shaft rotates in that extends from the carb body .400 and this leaves the useable throttle shaft length of .583. There is sufficient room for progressive linkage and the manual throttle linkage that rotates over the sleeve. 

• For 1949-53 Ford Flatheads
• 9-1/8" carb centers
• Has boss or flange for generator or fan assembly to mount to
• Has the fill and draft holes behind flange
• 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

Note: Not recommended for use with Ethanol fuels.

Manifold Specs:

• 3-3/4" tall (measured from block mount to carb base)
• 9-1/8" carb centers

Note: There are no provisions for a vacuum advance line. Ford and Mercury engines 1949-1953 using stock distributors will need an alternative place to connect the vacuum line.

9 Super 7® Primary Carbs -

1. Features .045" main metering jets and a number 65 power valve, which is the same as a stock 97 carb.
2. Replacement jet access plug gasket use # 91011542, replacement needle and seat gasket use # 91011543.
3. Includes base gasket.
4. 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.
5. 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

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

9 Super 7® ® Linkage Instructions (PDF)

915-11655 9 Super 7® Carb Instructions (PDF)

Multiple Carburetor Tech Tip (JPG)