Streetfire Ignition Only Likes Accel Coil

Anyone know what is different in an Accel Super Coil vs MSD or Pertronix?

Reason for asking, upgraded ignition in Duster 340 to Streetfire box, MSD Distributor and Blaster 2 Coil. Car runs for around ten minutes then dies. Went through two blaster 2s(.7ohm) Tried pertronix flamethrower(1.5ohm). Worked for under 10 mins. Meanwhile, each time coil goes I pull over and swap back in my buddies old Accel Super Stock chrome coil(1.4ohm). Car runs mint with no issues until my coil comes in at store and same deal over again. Have been on tech support with MSD, tested components and verified wired properly, coil mounted vertical (case still cold when dies). Since it kills any other brand of coil assume maybe something with box but why would old Accel work when other new ones all last 10mins? What am I missing???