AED 5585 Vacuum Secondary Quick Change Tuning Kit
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The kit includes everything you need to get started with Holley vacuum seconds carbs. However, I am unable to locate a chart that indicates which color corresponds to which spring rate. The Holley website assigns a color rating from light to heavy. You, on the other hand, are in possession of all of them.
Selected User Reviews For AED 5585 Vacuum Secondary Quick Change Tuning Kit
The quick-change housing is fantastic and performs flawlessly. The white spring was supposed to be the lightest, but its stiffness is identical to that of the plain spring. All of the other springs were fine, but the lightest spring is arguably the most important, so its absence from this kit is a major disappointment. As a result, I regret not purchasing the genuine Holley kit (Holley 20-1). Genuine Holley springs (Holley 20-59 Quick Change Vacuum Secondary Housing Kit) and a Quick Change Vacuum Secondary Housing Kit (59 Quick Change Vacuum Secondary Housing Kit) Vacuum Secondary Spring Kit) (13 Vacuum Secondary Spring Kit) (13 Vacuum Secondary Spring.
My Holley 4150 is still being fine-tuned, but this appears to make tuning the secondaries a breeze.
When changing the vacuum secondary spring for Holley carburetor tune, you will save a lot of time and effort.
It's fantastic! allows for faster tuning.