I'm not advocating it. I am saying that I can see that it might be an improvement. But the restriction through the throttle body itself might be the dominating factor, so it may not matter.
Sounds like an interesting test to make, though!
I've seen one time-trial car set up this way, but I have no idea if it really works or not. I've seen one or two other autoXers/time trialers with nothing at all over the throttle body except some "chicken wire".
--DD
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Pelican Parts 914 Tech Support
A few pics of my car:
http://www.pelicanparts.com/gallery/Dave_Darling