318 with a new 4” crankshaft.

After previous posts here I am going to get a new 4” stroke eagle crankshaft new pistons and rods to match. What else should I look out for. Will the new crankshaft require balancing. Im going with the .040 over pistons to get 11:1 compression to make it a 392. Any advice will be appreciated.
KB hyper pistons
Speedmaster heads
Hyd Roller Thumper camshaft .514 int
Air gap dual plane manifold
Pertronixs 3 ignition and distributor
Holly 750 single pump
These are parts going back on
Stock rockers