Timing. My first guess is it's 180 out as being off even 15-20 degrees it would still run. Run rough, but it'd run. I'm going to assume the timing chain was installed correctly.
Start over, find TDC on the Compression, confirm the timing mark is around TDC and check-reinstall the distributor, check firing order and plug wire position. If you're running points you can test light it get the timing dead on. Also make sure the point gap is correct.
You're also dumping way to much fuel in it. You don't need much to run and idle.
What type carb and intake?
Wanting a Custom fit in an off the rack world.
I don't have time for a job, I just need the money.
