PCM / wiring problem

[Bow Tie 67]

It sounds like a wiring problem and the ignition switch is not properly wired into the new electrical system. You'll have to research the 95 engine start / run wiring schematics and see how the original ignition switch was wired in. Then make sure the 69's ignition switch run position is suppling power to the same circuits as the 95's ign switch in the run position. If that is correct then you may have other problems.