An inline six needs one carb- - - -or three. Two carbs don't make good nonsense, and with the cylinder head design of a stovebolt Chevy engine, it doesn't matter how many carbs you install, the port design won't let it perform more than a minuscule amount better than it does with a one-barrel carb. Even extensive porting and polishing doesn't make the 1920's engine design any better. Running dual carbs on a stovebolt is like putting g lipstick on a pig. Ditto for dual exhausts. The ports and the combustion chamber design in between the two "improvements" are a choke point you can't avoid. If you tie two pieces of anchor chain for a battleship together with baling wire, how well do you think it's going to do at holding the ship in place?
Jerry
