At least I have never seen one before.

http://www.ebay.com/itm/Edelbrock-Ford-2000-Pinto-2x1-Aluminum-Intake-2-L-4-cyl-F-P-1-/171455459769?pt=Motors_Car_Truck_Parts_Accessories&hash=item27eb8ab1b9&vxp=mtr

I always liked multiple carb setups. Tuning them not so much, but there is definitely a sex appeal attraction there to me.
Russ

Not that hot a setup. Far better to gang up the 1-4 and 2-3 in pairs but harder to build the part that way. The intake events are too lopsided, why it really makes no power. Looks only and does not deliver.

The chopper bike guys love that type setup (2 carb) because it allows them to run frame in closer between legs. On the engines I ran (79-83 DOHC Honda fours) though, they make like 10 less hp. than the stock carb does. Easier to make 4 small carbs work than 2 bigger ones. Why cars have 4 barrels.