If the engine is built well enough that it demands more air and fuel than a 2 barrel will deliver then, yes. Depending on engine size, cam, and a lot of other variables, you can usually get a little more power from a 4 barrel than a 2. The biggest mistake most people make, however, is putting too big a carb on the engine.
Probably not. Unless the previous intake and carb were not functioning properly.
Hard to say, they have several intakes and carburetors for that application.
Start with a cold air intake, then add headers. If you want 100 or more horsepower instantly add nitrous
Several things can add horsepower to your truck. A free flow air filter, different exhaust, or computer chip change can all help get more horsepower.
add intake chip from eBay and put an exhaust.
3
Buy a performance chip. Very simple to install and pretty cheap. Can add 40 horsepower sometimes.
No, barrel backs to not use the same threads as barrels. You can buy longer barrel fronts to attach to barrel backs.
Add cleaners
Electronic ignition is a great relatively easy adjustment, also you can add a dual exhaust, upgrade your camshaft ( requires pulling the engine), and I'm not sure but possibly adding a 4 barrel carbeurator.
Install a computer chip upgrade to improve fuel injection and ignition output. This is the most "efficient" way to add 50 horsepower. The quick and dirty way to add more horsepower is nitrous oxide. Putting the motor on a single-stage NOS bottle will raise horsepower, but threaten the viability of the engine.
How much horsepower does power commander add to 2012 R1