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Bolt-in installation using factory seat bracket locations
Operating range covers 39
Constructed from quality materials with precision manufacturing for consistent fitment
This produces a strong high-RPM wave-tuned effect that raises the peak horsepower point by 500–800 RPM compared to a dual-plane manifold
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Milodon Gear Drive Assemblies Toggle Switches Bolt-in installation using factory seatThe Milodon Gear Drive Assemblies replaces the timing chain with a gear to gear cam drive system. Milodon gear drives eliminate timing chain stretch and provide consistent cam timing without the periodic replacement required by timing chains. Part 21090 is configured for its specific application with attention to fitment requirements. This assembly includes hardened steel cam and crank gears with a needle bearing idler that reduces gear noise.
