One learns by asking questions.
Sometimes one can learn much on the various forums by using the "search" function.
But to try to answer your question; it is my belief that to install a two barrel carb on that engine, you would have to swap to an older cylinder head, an aftermarket intake manifold, probably a different exhaust manifold, and the 2 barrel carburetor.
As Jerry (Hot Rod Lincoln) suggested above; after doing all of the above to an otherwise stock engine, you will have no discernable increase in power, and probably less fuel economy.
Enjoy the truck for what it is. If you want more power, swap to a larger engine, or one that is more amenable to modification.
Jon.
