[ProDigit]

Modifying just the carburetor is not going to work, simply because the turbo will need a lot more fuel at a certain rpms when under load, than when running without load.
You'd either run the setup stock (so without load it'll run fine) and have it run too lean at load,
Or run it fine under load, but too rich without load.
Some additional fuel supply system needs to be added, to make it run well under load.

Electric motors aren't viable, as some people have tried anything ranging to a leaf blower. And a 1000W leaf blower only added between 3-5HP to a 1.8 liter, 135HP car. Not worth it. The Rebel's alternator only makes a few Watts of extra power, so I'd have to swap out the head and tail light, for leds, and can install a maximum of about 60-70W blower.

A blower may be more effective on smaller engines than on larger ones... But I'm expecting the differences to be minimal.