You're right! Idle is 1100 RPM and believe me, that's amazing to ride on the street. Maybe in a 408" you can drop the idle around 1000 RPM easily...

'77 Brazilian Dodge Charger R/T - Street Car
Footbrake, Pump Gas, SB Mopar 360" N/A
3300lbs, Leaf Spring + Assassin Bars
Best 1/8 mile ET
1.50 60' / 4.31 330' / 6.73@102.54mph