Just curious about what rpms you guys are experiencing at warmed up idle. I seem to be able to get mine to idle pretty smoothly at 600 rpm. Could I, or should I try to get lower? Higher?

1962 Fleetside 4spd 235 w/O.D. posi 3:90
In the Stovebolt Gallery
1990 Subaru Legacy Wagon AWD 2.2 5sp
2013 Ram Tradesman C/V
My Webshot Photos]