New intake manifold worth it?

Ive had my 360 together in my dart swinger for a while now and been driving it around all summer without a hiccup in the engine. It makes really good power and is nice and healthy so I have no problem. But ive been thinking that my intake manifold may not be completely correct for my engine combo. The intake is a weiand dual action plus dual plane.

Engine specs:
360
Holley 650 sitting on top
KB 107 pistons at zero deck
Stock crank and rods
edelbrock heads with matching springs for camshaft
lunati solid roller 237/243 @50 and .566/.578 lift which is good from 2500-6600 RPM
Roller rocker arms
Dougs headers out to 2.5 inch exhaust at the rear bumper

The car has a 999 transmission with a soon to be installed 3000 torque converter and 4.10 rear gears.

Would it be beneficial to change out the intake manifold for one that is more for higher rpm? or would It not be worth it to change it. Has no issue lighting up the 255 rear tires so there is plenty of power as it sits now, just wondering if Im leaving anything on the table.