Thread: Holley Secondary springs
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08-08-2007 05:26 AM #1
Holley Secondary springs
How do you select the proper secondary spring for a Holley w/vac secondarys?
Thanks
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08-08-2007 06:50 AM #2
I'm sure there's a more scientific method, but I usually just buy the set of springs available from Holley, and pick my secondary opening point either by trying them on the street or by a couple pulls on the chassis dyno. My experience has been that from the factory the spring is usually a step or two light.....Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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08-08-2007 07:23 AM #3
The most popular one I recomend is the long Yellow spring. Be sure take the small steel ball out of the port hole when you change spring it will make the secondary work better and more smoothly.
Thank you Roger. .
Another little bird