luckie - did you use the higher voltage coils and ones that retarded less (not simply red) and then make adjustments on the dyno to accommodate the hotter spark (ie more fuel, more plug gap, more coi lair gap, different ignition timing, etc.)?
I have found very different results on our dyno and would be glad to share them with you.
If you do nothing but swap coils out, it won't show any difference (unless you were already too rich on your air/fuel ratio to begin with.)
Where the hot coils have the most affect is right at peak torque (4000) which just happens to be where we all bring our clutches in. It certainly helps make the car accelerate better on starts and restarts where these engines typically stumble at part throttle.
Give us a call if we can help.
765-339-4407
Thanks,
Brian