318 Won't Start? And I tested as much as I could I think?

Another thing you might do is clip your meter to the coil + terminal. Post your voltage readings with key in "run" and again while cranking USING THE KEY

You should get 6-8 or so "key in run" and "same as battery" when cranking. You want an absolute minimum of 10V or more while cranking, at the coil

RECAP on setting the timing:

You seem to have said you got it to pop. Might be:

Fuel/ air conditions just unlucky by chance
Timing slow / retarded
Distributor is actually 180 off even though you checked?
Distributor on wrong cylinder........a simple mistake, "been there"
Cam timing has slipped

So I would stick my finger in AGAIN and make SURE the no1 is on compression

Pull the cap make sure the rotor is APPROACHING the cap contact for no1 wire

If you have a light CHECK timing on the starter, you want at least 4BTC and I would go 8-10BTC. Make SURE you are BTC and not "after"

If you don't have a light, after you verify no1 compression, "wrench" the engine so timing marks are 'about 10 BTC' then recheck dist. Reluctor should be about in center of pickup core

WHEN YOU LEARN AND GET GOOD at static timing, you can (key on) move/ wiggle the dist body back and forth across the pickup/ reluctor and cause a spark from the movement of the distributor. You can REDUCE the movement more and more and get the timing "accurate engough" to start.