Performance Distributors GM LS/VORTEC SOS Coils - Manual (Page 3)

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As we mentioned above, SOS coils are designed improve
the overall power and efficiency of the vehicle, and that’s
due to the additional 7,000 volts per coil compared to
stock – the increased energy in these coils will fire spark
plug gaps up to .065-inches in naturally aspirated
applications. “We do suggest, if you’re running a lot of
boost, probably 12 pounds per square inch or over, to run a
smaller plug gap to make up for the extra cylinder
pressure,” Performance Distributors’ Steve Davis adds.
Performance Distributors’ engineers have used the latest
and greatest technology to enhance the coil windings for a
higher voltage output, but maintained the original size of
the factory coil so they will bolt right into the OEM