That sure isn't much cam for a 383! You won't build 400 HP with that setup. Are you stepping up to an aftermarket throttle body?
Since you are having a chip burned, I would go up to the 212/218 comp but don't remember the lift. I think it is the 256 extreme energy
Hydraulic Roller. This will get you closer the the number you want. If you don't tow heavy trailers you could go up to the 262.