rough idle

[Jim Altemose <jaltemoose@xxxxxxxxx>]

I have a 63 Polara 500 with a 383 and BBD 3475s carb.  It just started
idling rough when I stop.  It's steady, but rough; shakes the car back
and forth a bit.  I was planning on following the service manual which
says adjust idle screw to 500 RPM, then adjust two idle mixture screws
till it goes lean, then adjust back and re-adjust idle screw to 500
RPM.

But I was reading some things on line about the the Carter BBD carbs
being very common to have the idle filler tubes in the venturi clog.
Anyone have experience with this?  Is removing and cleaning the filler
tubes the first thing to try?  Any tricks to this?

As always, thanks.

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