Which is a pretty decent stock type coil. But an HEI coil and module will put out significantly more spark energy.
FWIW, this creates a hotter 'spark kernal' (which is the initila part of the bun process) which makes the combustion process work better and to proceed faster. (And thus it effectively adds a bit of spark advance into the whole situation.) You really ARE gonna see this in performance and general operation.
