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If the air is moving fast enough, roughness along the surfaces can easily make the flow turbulent.
Consistant carburetor performance depends on consistant pressure at the vent and the air bleeds.
It also depends on veleocity through the booster for creating the low pressure point.
If the air is turbulent at the vent, air bleeds, or try to get through the booster, all bets are off.
With the filter top, many times its been found to create turbulance.
Take a look at a factory filter housing to see how the top and bottom were shaped to encourage smooth flow into the top of the carb.
Air flow can be smooth or turbulent.
If the air is moving fast enough, roughness along the surfaces can easily make the flow turbulent.
Consistant carburetor performance depends on consistant pressure at the vent and the air bleeds.
It also depends on veleocity through the booster for creating the low pressure point.
If the air is turbulent at the vent, air bleeds, or try to get through the booster, all bets are off.
With the filter top, many times its been found to create turbulance.
Take a look at a factory filter housing to see how the top and bottom were shaped to encourage smooth flow into the top of the carb.
