Dany's Magnum swap is back!! with Ignition woes now..

Also, with it idling wiggle the wires going to the ballast. I chased a problem a few years ago where anything over 60mph it would miss. I finally found it by accident when I bumped the wires going to the ballast and it died. The resistor wire in the ballast was broken, but making contact and I guess at speed the underhood wind was moving the wiring enough to make it break contact on and off causing it to miss.

Free to check anyhow.