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OK. I don't think this will be the best choice for a 2 L engine.
In order for the circuits to work, you will need to run a fairly high Power Valve. When accelerating, vacuum will drop out rather quickly, so the pump shot will need to be bumped up as well.
These carburetors, when run on small displacement engines tend to have a dead spot somewhere in the cruise and transition.
A 350 cfm carb is too big unless it has a secondary system that is flow dependent.
I can't remember which pump cam comes on the universal, or which shooter they use.
To run the 500 CFM Holley 2300 on my 4.1 L inliner, I had to run the 50cc pump shot to get it off the line. Different application for certain. (Drag car.) I could get it to idle, and WOT was phenomenal. unfortunately mid-range cruise was terrible.
That car ran better with a 600 CFM vac Secondary Holley 4 bbl, and got much better fuel economy. Going to a Carter AFB netted more improvement, with far fewer tuning issues. After playing with the Carter in 600 CFM trim, and 500 CFM trim, the time slips showed the car was quicker as a 500.
I can't think of any primary blocks that would have appropriate air bleeds for the two litre four cylinder.
I'd look at the weber progressive. It's a mechanical secondary, but the air flow is much more in line with the displacement of your engine. With that carburetor on a Subaru 1600 pushrod engine, .040" Oversize, I was able to get into the mid to high 30's, and had improved overall performance.
The Carter BBD is a pretty good carburetor, but finding a rebuildable one these days is getting to be a challenge. The specific BBD also needs to be found. Large 6 cylinder and V8 BBD's don't work well with smaller displacement engines. Drilling the butterflies sometimes can work, but some models were modified by the OEM's in such a way that they aren't very useful in swaps. Jeep and AMC come to mind as Carter's to avoid.
The Holley 1920 1 bbl was offered in an Economaster, and flowed appropriately. Somewhere in the 220 cfm range at 3"
I liked the Rochester 2SE. (Not the E2SE!)
It's a progressive two barrel that was used by GM on four cylinder cars and 60° V6s. In something fairly light it can do an exceptional job. Linkages and the base pattern would be a challenge though.
The E2SE used a mixture control solenoid, and was difficult to tune. It would require an ECM and appropriate sensors. While possible, the return wouldn't be very reasonable.
CJ
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