Any Pertronix experts here?

Thank for all of your input, per Pertronix, they tell ONLY TO USE the .6ohm unit or it will fry the unit in the Dist. and the coil , will go the safe side , although I would like the higher output unit. The sad part I already had ordered the 60115 was able to get a really good price, so when I receive it I will list it for sale since I can not sent it back! Evil Bay.