I have a 393 windsor which I recently built, and I decided to get new plug wires to match the motor (old ones orange, new ones blue). I was running 7.5mm Autolites, and I bought Moroso Spiral core 9mm wires.
My car won't run with the Morosos. I have a Petronix coil running off the factory ignition connection (resisted), a Pertronix Ignitor I and a stock cap with Champion plugs. The car runs great with the Autolites.
The resistence on the Morosos is less than the Autolites as measured with an ohmeter. When I replace one wire at a time it will run without a miss that I can notice, but when I tried to start it after replacing 4 wires it would not start.
The Moroso guys are baffled as to why it wont run, as am I. I will try and run 12v to the coil this weekend, but I have never had a car refuse to run just with a plug wire change. Thoughts?
My car won't run with the Morosos. I have a Petronix coil running off the factory ignition connection (resisted), a Pertronix Ignitor I and a stock cap with Champion plugs. The car runs great with the Autolites.
The resistence on the Morosos is less than the Autolites as measured with an ohmeter. When I replace one wire at a time it will run without a miss that I can notice, but when I tried to start it after replacing 4 wires it would not start.
The Moroso guys are baffled as to why it wont run, as am I. I will try and run 12v to the coil this weekend, but I have never had a car refuse to run just with a plug wire change. Thoughts?