Did you notice any difference when its removed?Bowl vent screw should be removed for any all-out racing
application which includes use of air horn or air cleaner
without filter element. Exposed passage in carb body
maintains equal pressure between float bowl and
atmosphere.
i'm using the wimmer mount and 90 elbow with an open K&N filter. the ultra sucker that came with it is too restrictive. Ray is running basically the same set-up
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Now that makes some more senseI was told remove mine from BDM tech when I first started having after fire issues. Anyway, it's called the auxiliary vent bowl screw - they said it should be reomoved for warm climates and / or high altitude users. Did not notice any differnce.
