Very little, if any at all. The carburetor is not what makes the horse power, The rotateing system and Valve train is what makes HP.
There is no reason you would have to.
It does not have a carburetor.
No you don't but if you are putting a different carb on you might have to change the manifold.
you will need to replace the intake with an intake for a carburetor,install carburetor and replace the distributor with one which has a vacuum advance(a late 70's 305 or 350 will work well). you will also have to install an electric fuel pump for a carburetor (lower pressure than the fuel injecton). remove the relay powering the pump in the tank if the whole wiring harness is not removed.
no, the carburetor has nothing to do with your gear ratio.
You don't, it does not have a carburetor. They are fuel injected. Hope this helps!
More than likely this means your carburetor float has stuck at some point and let gas leak into the engine after it was shut off. To be safe you really need to replace the carburetor or have it cleaned.
5 to 9 horsepower about 7 horsepower i felt a big change of horsepower in mine
yes
The 4.0L EFI , V6 engine in a 1994 Ford Explorer is fuel injected so there is no carburetor ( from the factory )
You have to get a special intake that you can bolt a carburetor to.
If the vehicle runs fine otherwise, then the needle valve and seat in the carburetor are defective or stuck open. Could be nothing more than debris in the seat. This allows all the fuel in the float bowl to drain out overnight thus requiring you to prime the carburetor. This fuel ends up in you oil pan and can cause some serious damage if not repaired. Remove the carburetor and remove and replace the needle valve and seat. Be sure to clean everything throughly with a good carb cleaner. Also check the float for pin holes and replace if necessary. You may want to totally rebuild the carburetor if you find it is in bad shape. Be sure and change your oil & filter before driving this vehicle as the oil is contaminated with fuel.