@piney posted:I had a similar problem and it turned out to be the ballast resistor connections. (I no longer use a system that requires a resistor. Good riddance
)
Thanks, yes I was thinking it could be connected. I've found my wiring in the engine bay now. Looks a bit messy and actually awkward to get to. It might be sensible to relocate the coil to be beyond the swirl tank out in the engine bay. I prefere to be able to get to these things easily. Even with the bulkhead cover off (I've not done that yet) it looks still tricky to get to. I know a coil out back might look offensive to some 
but a non running Pantera is more offensive to me 
. Also I'll wire in an experimental clean 12v feed to the coil which looks to be a Flamethrower III to a matching Flamethrower III new distributor.
Car looks to have a ground strap already from the gearbox to chassis strenghtener point, but I'll pull it and give it a clean.
Also I see the regulator in there is an original Motorcraft one and it looks old, that's ok, but the connectors and such as probably in need of a clean.
I've located the single mixture screw on the carb so when next testing I'll tweak it richer just a little.