Then I guess the only option is the StreetFire 6 tower coil pack and custom made MSD spark wires. We had a few cars running that combination. Works quite well.
Ha! I've seen ppl visually test their spark against the negative pole of the battery. I don't know a quantitative way.
The OE plug wire is not suitable for these hotter coils. You need a low resistance plug wire. The OE ones has much higher resistance than aftermarket ones.