No spark, need help......

[Excaliber]

Uh oh, it just dawned on me that many of todays modern coils work fine with a module but will BURN UP if you use 12 volts direct to the primary circuit. Many of them REQUIRE a ballast resistor that drops the 12 volts to about 6 (7 or 8 maybe).

It's possible the coils that have been tested with the above wiring schematic are now toast.

[JTB321]

Thanks guys but the coil wiring for the Mustang does not include a ballast resistor.
The circuit does have good connections, the photo is just to show the configuration.
No spark, engine not run, no complete project......running out of ideas...