Vacuum secondary spring question

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#5 (permalink)

06-26-2014, 05:16 PM

patrickt

Half-Ass Member

Join Date: Jun 2005

Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum

Posts: 22,025

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Quote:

Originally Posted by Texasdoc

Holley says that the car is faster if you can't feel them open.

I believe this to be true. I have an adjustable vacuum secondary on my Holley (see this thread: Theoretical Vacuum Secondary Question ) and my "informal street testing" would seem to back it up. You do have a zip tie on the shaft that shows you how far they're opening, right?

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