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  Stiffer or weaker secondary spring to cure flat spot ?

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Author Topic:   Stiffer or weaker secondary spring to cure flat spot ?
Pierre
Gearhead

Posts: 366
From: France
Registered: Apr 2002

posted 10-23-2002 04:24 PM     Click Here to See the Profile for Pierre   Click Here to Email Pierre     Edit/Delete Message   Reply w/Quote
I am attempting to adjust my holley 750 cfm VS so it performs at least as well as my old 600 DP.
Some say that a weaker spring will take care of my flat spot (allowing earlier opening of secondaries) others (Holley's instruction sheet provided with spring set) that my flat spot is due to secondaries opening to soon (SB engine BTW)

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 10-23-2002 04:28 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
If it still has the stock spring that it came with Pierre, I am 90% certain that your flat spot is due to too late an opening.

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