HEI Ignition Coils

I'm running an MSD Blaster SS with a HEI 7-pin module, controlled by the MegaSquirt3 ECU.
My dwell table ranges from 2.5ms to around 4.2ms.
Only reason I use the Blaster SS is because I could buy it used and cheap.

edit:
That's why I like used parts... At least they have proven themselves to work...!
New parts haven't :D