408 Magnum New Build, Gutless of idle

That's not a truck/pulling cam.

Thats a street race cam for a light weight dak.

Imo Your cam should look like a truck cam on paper.. fast rate.. more lift.
@.050 should be near/around 210/218
Lift around .500 112

230's is 6000 rpm
You jumped continents with the @.050
How often will you be there without 4.57-4.88 gears?
So I say the cam isn't ideal for your intended purpose.

Btw I just put 3.92 in mine, perfect. 80 mph at 2350 rpm, better gas, gets put of the hole with very little throttle. The heads are going on next... and I'll probably leave the cam stock and just add the headers.