BTW, check the length of the coils. If they are three inches long from the bottom of the mounting flange to the end of the coil, they may have the ballast built into the coil. Reason is that the well in the ignitor is three inches deep and the ballast would make the coil stick up too high... I think.

Maybe others have been able to compare them. I don't know if I have ever seen the ballast (#4 in the illustration above).