Holley 20-13 - Secondary Diaphragm Spring Kit
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Description
Description
Holley 20-13 - Secondary Diaphragm Spring Kit
Vacuum Secondary Spring - Steel - Color Coded - Holley 4150 / 4160 / 4500 Carburetors - Set of 7
Secondary Diaphragm Spring Kit;
Allows changing the rate of the secondary operating ranges
- Secondary Diaphragm Spring Kit


