68 dart 318 troubleshooting challenge

RedFish said
In most cases the timing chain jumps when the engine is turned off, especially if it was running hot. The chain is longer when its hot.
It can jump when cranking too. Very short starter bumps are begging a loose chain to jump.

okay, I'll start to look at the piston position relative to the valvetrain... thanks for that, RedFish

one of the first things I did was hook the coil up directly to the battery to eliminate the ballast resistor and other shorts or wiring problems...