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Author Topic:   vacuum secondary springs ,,HELP!
Rustang
Gearhead

Posts: 471
From: Clarion PA
Registered: Nov 2000

posted 07-30-2002 07:32 PM     Click Here to See the Profile for Rustang   Click Here to Email Rustang     Edit/Delete Message   Reply w/Quote
I'm changing out the spring in my vacuum secondary 750, and I lost the info on what color is stiffest, etc.. Any clues?

thanks in advance

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'68 mustang 351 clevor- [email protected]
'67 Stang, 351W [email protected]
'69 351C [email protected]
'78 Pickup [email protected]
'79 Pickup 460 ET=??

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Moneymaker
Administrator

Posts: 19704
From: Lyons, IL, USA
Registered: May 99

posted 07-30-2002 08:19 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Black is the stiffest and yellow is the weakest.

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Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

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Rustang
Gearhead

Posts: 471
From: Clarion PA
Registered: Nov 2000

posted 07-30-2002 08:58 PM     Click Here to See the Profile for Rustang   Click Here to Email Rustang     Edit/Delete Message   Reply w/Quote
The one I took out was white. I replaced it with a silver one, which I think (?) is the original one.

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Kyle
Gearhead

Posts: 240
From: Sumner, WA
Registered: Dec 2001

posted 07-31-2002 12:59 AM     Click Here to See the Profile for Kyle   Click Here to Email Kyle     Edit/Delete Message   Reply w/Quote
Right from Holley:


Color, Load, Initial, Full:

White, Lightest, --, --
Short Yellow, Lighter, 1620, 5680
Yellow, Light, 1635, 5750
Purple, Med. Light, 1915, 6950
Plain, Medium, 2240, 8160
Brown, Med. Heavy, 2710, 8750
Black, Heavy, 2720, not open


The ranges are for a 350, but should give you an idea.

[This message has been edited by Kyle (edited 07-31-2002).]

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