383 w 6 pack set up opinions?

I am looking at the Mancini 6 pack set-up for some "Gee Whiz" factor on my 383 A body. Mild hyd cam 3:23 gear Auto 1600-5500RPM car
Daily Driver

Questions:
Is a 6 pack that hard to tune?
Would a standard 4 barrel dual plane mainifold run much better on a 383
Is the 6 packs sweet spot from 2500 to 6500 as i have read?



Thanks for helping