Kevin
in years past i did a lot of dyno testing at mandeville auto tech on 12a's and what we found was
if you are using the mazda ing. there was no real gain in horse power using the msd's.
they were a big help with crank fire ing. which we can't use in IT, however using a real good grade of plug wires "racing beat red" made more power than stock mazda wires or the blue NGK wires at above 5000 RPM.
i guess what i'm saying is the stock mazda coils are a LOT better than people give them credit for.
hope this helps
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