Sounds like my car when I first fired it up!
It's hard to diagnos remotely, but I had to set my idle high because the mixture screws were off - K.Marple fixed that up for me, big thanks. My car wanted to fall on it's face when I stabbed the gas because of the idle circuit, so I installed the white pump cam in hole #2 (I think), and that cleared up the off-idle stumble.
Make sure your plug wires are correctly routed, I made that mistake once too - a few guys from Kansas helped me correct that mistake at Englishtown
Also, simply make sure they are all connected, I had one drop off last year at SCR8 - couldn't figure out why I went from 14.2's to 15.5's!
I agree with Tony on the distributor, yank the vac adv hose, and set the timing for 38 degrees at around 2000 rpm. That should eliminate the distributor as a major culprit, and then you can focus on other items.