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Weber Venturi (Chokes), 48 / 50 DCO/SP Carburetors

These venturi will fit the Weber 48 DCO/SP, 50 DCO/SP, and 55 DCO/SP carburetors. Sold individually.

What size do I need?

The venturi size is the first step (after choosing the carburetor) in tuning a Weber carburetor to your application. It is tempting to use the largest size for the most airflow, but this can hurt performance. Too much airflow impairs low-end driveability. In fact, the car may not start or idle at all. And remember that the engine has a limit to how much air it can use. Feeding it more will not produce more power.

The book Weber Carburetors by Pat Braden (Part No. 5326) includes venturi selection charts based on engine capacity, use, and RPM.

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty	Part No.	Desc.	Price	Status
	72136-40MM Condition: New SKU: 53194	Weber 48/50/55DCOE Venturi, 40mm	$27.99	In Stock
	72136-42MM Condition: New SKU: 37649	Weber 48/50/55DCOE Venturi, 42mm	$27.99	In Stock

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Weber Venturi (Chokes), 48 / 50 DCO/SP Carburetors

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