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Discussion Starter #1
If I change my 390 to a 4 barrel intake and carb will I still be able to use the original air cleaner housing?
 

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My guess is no as I would think the carburetor throat opening on the 4BBL carb would be larger then the 2BBL so your original base plate opening would be too small.
 

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I think it may be the same size. Measure it and see.
 
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