Description
The ARLEN NESS Big Sucker 1 Cover delivers measurable airflow improvements by routing breather passages directly into your carburetor, creating a virtually closed-loop system that maximizes intake efficiency. This patented design eliminates parasitic losses while maintaining engine cleanliness—critical for Twin Cam performance builds where every airflow pathway impacts horsepower and reliability. Whether you’re building a street cruiser or a high-rpm application, this bolt-on upgrade combines precision engineering with genuine functional benefits.
- One-piece aluminum backing plate
- Patented hidden breather technology
- Radius air inlet design
- Breather exits at carburetor mouth
- Virtually closed-loop system
- High-performance air filter included
- Steel outer cover included
- Complete hardware kit included
- Installation instructions provided
- Fits Twin Cam engines
- Bolt-on installation
- MPN: 18-321
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