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ported or manifold vacumm for distributor

Posted By 1964fordf100292 16 Years Ago
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1964fordf100292
Posted 16 Years Ago
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on my 292, where is the best place to get vacumm for the distributor for the best performance.  carb base or manifold. the port it's on now is right in the carb base.
paul2748
Posted 16 Years Ago
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There are a number of threads about this. If the search function doesn't work, do a manual search. I believe that manifold vacuum is not the best to use.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Ted
Posted 16 Years Ago
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As Paul mentions, this has been brought up several times in the past and opinions vary on the subject.

 

I vote ported.  That was the factory method on all ’57 and up Y’s but there are instances where manifold vacuum can provide an increase in fuel economy over the ported vacuum but many times at the expense of some drivability issues in cruising situations.  Regardless of the vacuum method used, disconnect the distributor vacuum line when setting the intial timing.

 

Here are some past threads related to ported and unported vacuum use to the distributor.

http://www.y-blocksforever.com/forums/Topic30767-3-1.aspx

http://www.y-blocksforever.com/forums/Topic31878-3-1.aspx

http://www.y-blocksforever.com/forums/Topic21110-3-1.aspx

http://www.y-blocksforever.com/forums/Topic11631-3-1.aspx

http://www.y-blocksforever.com/forums/Topic1213-3-1.aspx

Lorena, Texas (South of Waco)




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