Candlestick velocity stack

A velocity stack eases the flow of air into the carburetor.  Wikipedia says that a velocity stack for an engine does two things:

1. Allow smooth and even entry of air at high velocities into the intake tract with the flow stream adhering to the pipe walls.
2. Modify the dynamic tuning range of the intake tract by functioning as a resonating pipe which can adjust the frequency of pressure pulses, based on its length, within the tract.

In other words, it works like this:

Instead of permanently polishing out the NT carb intake like others done, you can get a similar effect by having a velocity stack.  Bairdco made one out of a candle holder from a swap meet.