I have no idea at what RPMs the idle is set at. The current car we have the other supercharged 360 in is a 1941 Dodge sedan (2-door). It is a shell of a car with no interior and open exhaust.
There is no tach in the car.
It seems pretty mild actually, at least to me.


I'll check out those generic converters a little more, however all of our cars have A-883 4-speeds in them.

1969 Dodge Super Bee A12 (440 Six Pack, 4-speed, Dana 60 4.10)

1972 Plymouth Road Runner (400, 4-speed, 8.75" 3.23)

1974 Plymouth Duster 360 (360, 4-speed, 8.75" 3.23)