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need L4 four barrel intake manifold

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WANTED



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The smallest 4 bbl will be too big for a 4 cylinder. Never over carb or over cm an engine. I think there was a 4bbl intake for the 280z.

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Twin Weber DCOE carbs is about the best you can do for a "4bbl".  Is that what you're looking for?  Dual side draft 2 bbls.  A stock port on a Datsun head flows 137 cfm.  Even a 500 cfm 4 bbl would be hard to tune, but doable.  A manifold like that would have to be custom built.  I like over-carbed engines.  They run great but you have to get the distributor modified to handle the excess cfm at low rm (poor velocity.)  

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Agree with Mike. Four barrels on in-line engines is a Band-Aid approach and really don't work well.

 

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