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Intake Manifold Question

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I'm about ready to give up on the Solex carb on my '76 and am wondering whether a Weber 32-36 is a bolt-on replacement or do I need to modify or replace the stock manifold?  Advice is much appreciated.

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That depends on if you have the 1 barrel or 2 barrel. If it's a 2 barrel all you have to do is hog out the holes where the carb mounts for the bigger butterflies. If it's a 1 barrel you will need to get a different manifold.

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The 76 is apt to have a two barrel manifold.  Mine came with a Weber already installed and the PO made a crude attempt at opening up the ports under the carb.  I traced a gasket opening and did a little bit more blending.

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I've heard of people running the 1/4" phenolic spacer under the carb and having that provide the needed clearance.  I don't use the spacer, in part because I need to keep the carb low for the stock air cleaner to fit under the hood.

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1 hour ago, '76mintgrün'02 said:

've heard of people running the 1/4" phenolic spacer under the carb

The phenolic spacer is to serve as a heat block to keep that hot aluminum manifold from causing vapor lock in the carb when it's parked hot for an hour or so.  Mine is so equipped, and with the stock 2 barrel air cleaner it still clears the hood.  But the one barrel air cleaner on my '69 (with its original Solex) does ever so slightly hit the hood--enough so I glued a little piece of Teflon onto the hood to prevent metal-to-metal contact.  Go figure....

 

mike

 

 

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