Would like some sage advice on 360 Magnum build

Getting ready to build a 360 Mopar Magnum carbed engine for my 73 Challenger.
Not looking for a drag car...just a dependable cruiser with a bit of an attitude.
Would like somewhat of an old school “lopey� idle if possible.
Will have PS/AC, pro built 904 trans with 2200 stall and 27� tires.
3.23 to 3.55 rear end gears posi. Mainly a weekender/car show ride.

Here's a rough idea of what I am considering> Need some input as I am as old as dirt and not very tech-savvy.
Looking for 375 to 400 HP...

Would like some sage advice on 360 Magnum build
Author: Tom Frost