Camshaft Selection Information

Wait a minute? You want a driver AND 400 HP?? You need to figure out what you want.

400 HP with a isn’t that hard but you ain’t going to do it and make it drivable with a 2500 converter and 3.55 gears.
To whom it may concern, the OP has a 4spd.
How did you miss that Mr. 4spd. lol :D