383 running rough?

[Jim Altemose <jaltemoose@xxxxxxxxx>]

I'm resending this since I sent HTML rather than plain text.

It took a while, but I just finished converting my 63 Polara 500 383
from a two to four barrel with a Carter AFB.

The good news is it runs.  The bad news is it's very rough when it's
first started like it's missing a cylinder or two.  I'm not as
experienced as most of you and I'm looking for advice on where to
begin diagnosing.

When I first start it, the engine is missing and shakes back and
forth, which I'm sure isn't good for it.  Yesterday after idling for
about ten minutes it gradually fixed itself and then ran real smooth
while warm.  Today after starting up, it's rough again.  After idling
for about 5 minutes, it wasn't improving so I shut it down; I don't
want to cause any damage.  It's about 30 degrees outside.  The exhaust
seems a little 'black', but I haven't run it for about 6 months up
until the 20 minutes yesterday.

Thanks in advance for any advice.

- Jim
Jim Altemose, Long Island, NY
'63 Polara 500 (Max Wedge)
'63 Polara 500 (383)
'65 Belvedere I (Street Wedge)
'71 Bronco