So if I understand this correctly you would place the carburetor about where the air box is presently located?
It's an interesting idea but if you're going to have the carburetor that far away from the intake then I think that you're going to get a lot of fuel "puddling" in the intake.
Also, you'll need to figure out a way to extend the throttle cable to the carb.
And probably many more small details to be worked out!
I like the idea! If your bored and set on giving it a try, make sure to keep us posted!