thinking of an intake manifold
Going from a 2bbl to a 4bbl is one of the best things you can do for more performance. I don't know off hand what the horse power numbers will be but I do know that more air and fuel equals more horsepower. There are also mail order companies that offer complete packages with the intake, 4bbl carb, air cleaner, and gaskets for just about any V8 engine.

