Whistle provides the entry of atmospheric pressure into the Carb Bowls.
All Dominators should have been built with One Whistle on the front metering block
and One Whistle on the rear metering block.
The fuel "runs away" from the entry opening on the Front Whistle.
The Fuel packs up on the back wall of the Rear Bowl Whistle on hard acceleration,
the fuel moves forward and seals the Whistle's opening with fuel.
No atmospheric pressure on the rear bowl and the fuel stops moving thru the metering block passages. Then you have a lean "hole" in the acceleration until the fuel settles back in the bowl and the atmospheric pressure is restored to the rear bowl again.
It can stop the fuel flow for a couple of seconds.
So the "fix" can be sometimes: Make the rear vent whistle about .400" shorter so that the fuel moving upward in the rear bowl and forward, will not block the opening for atmospheric air to enter the rear bowl properly.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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