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- Enhance your opening rate with a Demon Carburetor Vacuum Spring Assortment
- Includes 7 different diaphragm springs for your vacuum secondary carburetor
- Rate of spring stiffness determines when the secondaries open
- Spring kits are custom-designed to fine-tune your specific carburetor
- Your Demon Vacuum Spring Set is backed by a Limited Lifetime Warranty
Set your secondaries up for success with built-tough Demon Carb Vacuum Springs. This complete spring set includes 7 different diaphragm springs that allow you to manipulate your opening rate. Custom-designed to fine-tune your specific carburetor. Limited Lifetime Warranty.