Jacobs UltraLyzer Coil

 GM HEI starts to seriously drop volts around 5,500 rpm. The solution is the Jacobs Ultra-Lyzer conversion kit. The Ultralyzer replaces your HEI's internal coil with a Jacobs' Ultra-Coil. That means improved performance through your car's entire rpm range. The adjacent systems will run smoother and cooler.

For more information, please visit this product's webpage.


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