Which Carb/Intake Combo?

I'm helping my dad put a fresh 360 build together for his 71 D100 pickup and finally got the block and heads back from the machine shop and have assembled the shortblock. It's pretty much a stock-ish rebuild. The specs of the short block are:

'78 360 block, .030 overbore
H405CP pistons
Stock heads rebuilt w/ 3 angle valve job and comp 901 springs
Measured 8.6:1 SCR
Comp XE256H cam

The truck has 1-5/8 long tube headers, 727, 3.23 gears, and 27" tires

The intake manifolds we have available are a stock cast iron 360 4bbl and Edelbrock performer RPM and the carburetors we have on hand are a Holley 80457 600VS and an old Holley 3310 750VS.

The truck is just a cruiser for my 65 yr old dad to putt around town running errands and getting his morning coffee.

Of the intake manifolds and carburetors we have, which ones would you choose for this combo?