Need recommendation for a Carb for better MPG!

Along those same lines, The 340 never came in a 2 barrel version.
Very similar to engines like the 403 Olds, 425 Olds and 430 Buick. All of each of those three engines only came one way. In high performance tune with a four barrel. Even the 403s that made it into station wagons. They were the exact same engine as was in the Trans Ams for those years. They would flat out get it.