See blue arrows --> is this correct?

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Stroked68Dart

402 Crate Motor in a 68
Joined
Jul 6, 2011
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When I got this motor it came with the Holley 750 you see in the below pictures. The carb has vacuum secondary’s with electric choke.

My question is if the vacuum line that is attached (see blue arrows) is correct and should be attached in this way. This is how the carb came to me. Also, is that vacuum line the choke vacuum pull off?

 

Attachments

Doesn't look right to me. The vacuum tap almost directly below the fuel inlet (in the base plate) is a manifold vacuum source. I'm not sure what the one under the choke is for. The electric choke usually has its own built-in pull-off system.

Is there vacuum at the one in the choke?

i would cap each on off individually, if you aren't using them.

Whats the model (list) number of this carb?
 

Below is the answer I got from the Holley tech folks. Looks like the way mine line is correct. Of course the top vacuum port off the metering block goes to the vacum advance on the distributer but I had pulled that off to take the photos to make them more clear. Below is the quote from the Holley tech folks:

"If the vacuum line is comming out the bottom of the choke housing it needs to connect at a manifold vacuum source."
 
...............that means it needs vacc all the time the motor is running.......looks like its on a ported port.....does it have vacc at idle, if yes ur good to go, if not it needs it............kim........
 
Below is the answer I got from the Holley tech folks. Looks like the way mine line is correct. Of course the top vacuum port off the metering block goes to the vacum advance on the distributer but I had pulled that off to take the photos to make them more clear. Below is the quote from the Holley tech folks:

"If the vacuum line is comming out the bottom of the choke housing it needs to connect at a manifold vacuum source."

Well, see that....I learned sumpin today!!!
 
Below is the answer I got from the Holley tech folks. Looks like the way mine line is correct. Of course the top vacuum port off the metering block goes to the vacum advance on the distributer but I had pulled that off to take the photos to make them more clear. Below is the quote from the Holley tech folks:

"If the vacuum line is comming out the bottom of the choke housing it needs to connect at a manifold vacuum source."

Then that is correct.
 
Looks like that Holley is making it a choke pull-off by applying vacuum to it.
This would keep the choke from staying closed after the engine is started.
 
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