Well, you likely have either the 258 or 232. Either one will take the same plugs, everything on either motor is the same except the stroke. Same bore, same head, etc. The 258 is a stroked 232, i.e. different crank.
Your reading for compression are typical of a slightly worn Jeep 6. <img border="0" title="" alt="[Wink]" src="wink.gif" />
Nothing out of the ordinary and it would have no effect on it's running or not. I ran a 258 for years with about ~110 on all cylinders, and 80 on number 1, then the 80 kept decreasing until it got to 0psi, then I realized the exhaust valve was totally burnt. I kept driving it for another 6 months no problem, in fact, it seemed to have almost the same power, miraculously. Then, once my performance motor was done I swapped it.
What you have sounds like a timing/ignition problem. Although your degree readings look ok, (anywhere 8 - 12 BTDC should be fine to get it to run, then fine-tune), your problem could be elsewhere.
You could have jumped a tooth in your timing chain. Very common, has happened to me when the chain wears out. If you jump a tooth, your cam is then not timed right to begin with. And simply tuning the distributor to "retime" it really doesn't retime it, it gives you a "false reading" that shows that it seems to be timed right.
If you have tried everything else, I would take off the timing cover and see what happened, I would bet you are off ad tat it jumped. Easy to tell, follow the manual, it'll show you how to check if the marks line up properly. There are 2 positions you have to check against each other, so really pay attention to the manual for the correct procedure! <img border="0" title="" alt="[Wink]" src="wink.gif" /> If that is what it is, replace the timing chain and once it is set up right, i guarantee it will fire right up!
Let me know how you make out if you take that route. Timing chain is easy to do, make it easy on yourself, unbolt the grill and radiator, then you can actually sit on a bucket right in front comfortably and work nice! Grill is very easy to remove, as long as you can get the center body mount bolt undone.