340 Spark Plug Wiring Schematic

ok so maybe not dot to dot, but the dist was put on "180* out" which would put rotor pointing to rear of cap instead of front
There you go!

Timing chain is supposed to be dot to dot

Screenshot_20230123-220801.png

To the OP....

you can leave it the way it is (just confusing down the road) or lift the dist up a half inch or so, rotate the rotor 1/2 way around and set the dist back in.

Reset the spark plug wires to correct.

Set timing, and drive on.