gap for plugs - MSD box & dist.

A lot of people think the lowest resistance spark plug leads & non-resistor plugs always make more hp.

Nope, not on this 400 HP engine......
Highest HP was made with leads that had the second highest resistance out of 12 that were tested. [ #5 in the test ].
Test #6. The lowest HP. Test #6 used a non-resistor spark plug, as specified by the wire manufacturer. The remaining 11 tests all used the same resistor plug.

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