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139 0308 Hei 04 Z

Performance Distributors uses a large cap to space the terminals farther apart. This cuts down on crossfiring at high rpm. Also, you can see that the coil is totally sealed off from dirt from the inside.
HEI Hopup: A Faster Spark

Performance Distributors uses a large cap to space the terminals farther apart. This cuts down on crossfiring at high rpm. Also, you can see that the coil is totally sealed off from dirt from the inside.  View Related Article

 

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