This looks very promising for our use.

The GM LS7 V8 is  high RPM racing version with Titanium rods.
Apparently the GM part number "??" is one step up from
the LS2 coils. Hopefully the  dwell time will be more like
the RX8 coil coil 3 ms dwell time.

The coils can be mounted on a heat sink from the looks
of them. That looks like a huge advantage to me.
The LS2 has a small heat sink but it would be better
if it could be mounted on a heat sink which it cannot.

I'll have to get one to look at it and test it.

Paul Lamar