Determining vertical or horizontal fuel atomized

AI Thread Summary
The discussion centers on the optimal positioning of the Dial A Jet for effective fuel atomization in a CV carburetor. Thunder Products recommends positioning the Dial A Jet between the 10 o'clock and 2 o'clock positions, ideally at 12 o'clock. A contrasting opinion suggests that a horizontal placement, like 2:30, could enhance atomization by leveraging gravity to create a puddling effect, potentially leading to better fuel delivery. The main confusion arises from whether the positioning significantly impacts atomization, given the rapid vacuum action pulling fuel into the engine. Ultimately, the effectiveness of vertical versus horizontal placement in maintaining fuel atomization remains a key concern.
justsomedude
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I need a little help understanding which method would be the best way to keep fuel atomized for the longest period of time.

I have a CV carb (more specifically a Keihin CV 40) and I'm wanting to install a Dial A Jet.

*If you'd like to learn more about the Dial A Jet, go here, http://www.thunderproducts.com/dial_a_jet.htm .

Thunder Products (manufacturer of Dial A Jet) recommends putting the Dial A Jet anywhere between the 10 o'clock to 2 o'clock position and ideally 12 o'clock.

Someone I had a conversation with wanted to place the Dial A Jet in more of a horizontal position (For example 2:30). They said that gravity would assist in a puddling effect if put in a vertical position. In other words a vertical position would allow for worse atomization.

Here is what I'm confused about... If the Dial A Jet is placed in a position, horizontal or vertical, wouldn't the result be the same? It seems as though the vacuum is so quick that the moment the fuel reaches the end of the Dial A Jet it's being sucked into the engine.
 
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