Electrical problems

So getting back to this voltage issue. I tried running a 12v hot to the coil no start. The wiring on this car has been messed with pretty good. I have cleaned up all of of the bad connections that I could find. I have done the mad wiring like the show. Like I said before it has a one wire alternator. Still only had 9.5 coming out of ignition 2 wire from the ignition switch out in crank position. Replaced the ignition switch same thing no change. I have installed a new starter relay for a Wagoneer with the extra lug that my understanding is will give you 12 volts at cranking. It is the same 9.5 volts when cranking from that as well. From everything that I have read ignition 2 should have 12v when cranking? Im sure it is not theonly problem because it didn't start with a hot 12v but one thing at a time . Like I have said before wiring is not my best attribute, but I can usually get there. Thank ahead of time for any help.