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Author Topic: Holley 4346 question  (Read 6058 times)

CJP_69

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Holley 4346 question
« on: October 10, 2011, 09:00:18 PM »
Can anyone tell me if the 4346 780 should have a check ball in the vacuum secondary housing?
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Chris

IZRSSS

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Re: Holley 4346 question
« Reply #1 on: October 10, 2011, 10:45:59 PM »
Yes, take a look at "Procedure" #6 in this PDF on how to tune a Holley...its down towards the bottom.

http://www.nastyz28.com/~ericf/tech/htune.pdf
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CJP_69

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Re: Holley 4346 question
« Reply #2 on: October 11, 2011, 12:13:37 AM »
Hi Marty,
The Holley rebuilding book that I'm referencing states that most have the check ball but some have a metered restriction orifice. However it doesn't reference which list numbers should have it. Mine didn't have the check ball but before I reassemble it I want to be sure.
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Chris

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Re: Holley 4346 question
« Reply #3 on: October 11, 2011, 12:25:05 AM »
Chris - I was hoping the article referenced specific Holly's. Unfortunately it does not. It would be best if you waited for John (JohnZ) to chime in.

Good luck
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JohnZ

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Re: Holley 4346 question
« Reply #4 on: October 11, 2011, 04:19:10 PM »
Jerry will have the definitive answer, but I've never seen an OEM vacuum-secondary Holley 4150 or 4160 that didn't have a secondary diaphragm check ball.
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'69 Z/28
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IZRSSS

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Re: Holley 4346 question
« Reply #5 on: October 11, 2011, 05:07:12 PM »
Chris - you may want to try calling Jerry or writing him. Contact info is at the bottom of this link...

http://z28camaro.com/
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CJP_69

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Re: Holley 4346 question
« Reply #6 on: October 12, 2011, 06:03:44 PM »
Thanks guys. I phoned Holley tech and was told that the 4346 does not have the check ball.
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Chris

rodent

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Re: Holley 4346 question
« Reply #7 on: October 12, 2011, 06:41:05 PM »
Quote from: CJP_69 on October 12, 2011, 06:03:44 PM
Thanks guys. I phoned Holley tech and was told that the 4346 does not have the check ball.

Exploded view in the Parts manual does not have a ball either,exploded view of other holleys does :)
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