1974 Scamp some assembly required

OK so we installed new ignition parts. Only exception was the ecu. Tried it. Still nothing. Nothing from timing light. Swapped ecu with another. Re-set to compression on cylinder 1. Now where cooking. Tried to start but still not quite. Hit's and pops out the carb. Adjusted the dist, only gets worse. Tried and tried. Tried dist 180 out. Just in case. WAY worse. Tried a second distributor, same results. Really starting to think I'm a tooth off on timing chain. That's what it acts like. However, I will have a brand new ECU tomorrow I will try, just in case it's doing something wierd. Checked and re-checked the plug wires. Then had my son check them. Told him to find the crossed wires. He said, nope all good dad.
Edit: Not just wingin it here. Actually doing this methodically. Will re-verify tdc and ready to fire on cylinder 1 with a few degrees advance and reluctor pointing at the pick-up. Again.
Any thoughts? Missing something?