383 running rough?

[Jim Altemose <jaltemoose@xxxxxxxxx>]

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

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