Well, there seems to be some variation where the #1 plug wire is located. Simple way to get things right:
Rotate engine by hand until the little round ball bearing marker in the front of the flywheel is centered in the hole in your bell housing. (just to left of the steering column.)
Check and see where the rotor in the distributor is pointing. That'll be #1 wire goes there. Clockwise rotation on distributor, so just finish the firing order from there.
If you are installing the distributor, the vacuumn diaphram should be at about the 3:00 o'clock position.
Here's a pic of my engine:
216 plug wires
