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Discussion Starter #1 (Edited)
Hi Im using a perf RPM intake on a small block.Where is the best place to hook up the transmission vacuum can line to ? I ask because I was told to hook it up to the port opening on the manifold with a adapter thats right below the carb .The problem is the carb sits right on top of the opening with no room to spare.Can the vacuum line be hooked up to a port on the carb ? thank you
 

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Make sure you're using "unported" vacuum. "Ported" vacuum is only available when the butterflies are open (accelerator is depressed). I have a Demon carb and they have a ported and unported connection at the right front of the passenger side. I even use the unported connection for my distributor vacuum advance. Unported vacuum is available anywhere below the butterflies of your carb.
 

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nova73harley03 said:
Unported vacuum is available anywhere below the butterflies of your carb.
Exactly, or you can get it directly from the manifold itself as some manifolds have places where you can add a port if needed or you put a threaded plug in it if you dont.;)
 
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