Earlier I suggested to diagnose three things, one at a time.
1) Compression. (You now have confirmed adequate compression.)
Now on to what's next on the list.
2) Spark at the right time. Get the engine at TDC #1 cylinder. Pull distributor cap to see if the rotor is pointing toward the #1 spark plug wire post on the cap. If it is off by more than what you can turn the distributor to correct, the distributor may have been installed one tooth off.
Last on the list is #3, the carburetor. It is last because, "its never the carburetor". Don't go there until you have verified #1 and #2 are correct.
