Optimize Carburetor Performance with Demon Vacuum Springs

Achieve the perfect secondary opening rate for your engine's specific vacuum profile with the Demon Fuel Systems Vacuum Spring Assortment. Designed for versatility and precision, this 7-piece kit allows tuners to dial in their carburetor's secondary response, ensuring smooth transitions and maximum power delivery under load. Whether you are running a street machine or a track-focused setup, these springs are essential for eliminating bogging and optimizing fuel efficiency.

Key Features and Compatibility

• Comprehensive Tuning: Includes 7 distinct color-coded springs for a wide range of vacuum opening rates.
• Universal Fitment: Engineered specifically for Demon carburetors and compatible with Holley 4150 and 4160 series models.
• Durable Construction: High-quality steel material ensures consistent spring tension and longevity under repeated heat cycles.
• Easy Installation: Designed for quick swaps, making track-side tuning simple and efficient.

Proper secondary tuning is the difference between a sluggish throttle response and a crisp, high-performance feel. By selecting the correct spring tension, you can effectively manage the vacuum secondary opening point to match your vehicle's camshaft profile and intake manifold vacuum levels. Do not settle for factory settings when you can customize your fuel delivery to match your engine's unique needs. Upgrade your fuel system components today with premium parts from GGCRACING.