If the carbs are properly selected and adjusted; and the intake is decent, then the duals will give a bit more performance; albeit at higher cost, and more time.
One needs to look at all aspects of the engine, especially target RPM when selecting the carbs.
A single two-barrel will be somewhat easier to select, certainly less expensive, than the duals.
Jon.
Yeah, I have about 7 different Rochester 2-jets in my possession that I could choose from. I have always had good luck with those carburetors. Really the only reason I am even considering a dual setup is just for curb appeal whenever I open the hood for curious onlookers. lol The truck draws lots of attention wherever I drive it.
