Need help understanding Mopar ignition…no spark

The coil is not a Chevy coil. It's a Ford coil. Standard Ignition FD478. FD is Standard's prefix for FORD. Ford, Lincoln, Mercury and Mazda.
[URL][URL][URL][URL]https://www.summitracing.com/parts/SMP-FD478[/URL][/URL][/URL][/URL]

Don't be too hasty to dismiss :)

"that coil is a copy of the ones that used to be used on 6 cylinder chevy trucks"

same coil different manufacturer, Numerouse applications

my original was off a chevy truck but the core was rusty so i got a new one...

Cobra/Filko Ignition Coil NEW GM HEI ignition coil 1975-1984 GM 4cly/6cly | eBay

Interchange Part Number
GM600
Brand
Standard Motor Products
MPN.
DR-35
Manufacturer Part Number
DR35
Other Part Number
1115315, 1115324 1115444, 1115445 1115447, 1115448

can't say anything in repect to widing ratio but its approx 0.6 ohm primary and does the job very well indeed.

i wanted something with BIG iron core.. better flux carrying capacity. i want it in the core not messing with my radio.
looks crap but has to be better than the small plastic coated things look like they are off a motorcycle

Dave