bronco 11 distributer cap cylinder order

i have a 1985 bronco 11 that i had bought for fun two years ago.I now need it for work and cant seem to keep it running.I have a Haynes and a chiltons manual but they both show a different order for the same engine.how do i know which is correct for my truck?my distributer cap screw is at around 8 oclock when you are looking at the engine straight on.

Is either of the diagrams like this?
http://members.troublecodes.net/way2old/broncoII%20firing%20order.gif