In a message dated 96-05-18 00:08:42 EDT, rdr@arn.net (R.D. Robertson)
writes:

>
>The engine won't idle below 1300 or so RPM.  It's a steady idle and the 
>engine runs very smoothly, but ideally the idle should be around 900 
>RPM. The dwell is a constant 59 degrees.  The timing is set at 7.5 
>degrees  BTDC at 900 RPM.  (I managed to get the idle down temporarily 
>to 900 RPM by unplugging the top air hose to the decel valve and 
>obstructing about half of the opening, leaving it partially open.)  The 
>bypass screw (idle) is turned all the way in.  I've checked everywhere 
>for vacuum or air leaks.
>
>Anybody got any ideas?

Either the decel valve or the auxilary air regulator may not be closing
completely.  Check these out.
Dennis