Carb intake choice

Here are a few other choices:
Prefix:

ARR-CAS-1010 Gen 3 HEMI 'NON EFI' Intake Manifold

Edelbrock Dual Quad Intake

Mopar Performance Dual Quad Intake Manifold

Ritter Low Profile:

Mancini Racing Gen 3 HEMI Intake Manifold

Ritter Tall Profile:

Mancini Racing Gen 3 HEMI Intake Manifold

Indy Mod Man Intake (distribution issues with single carb - 3 tops single, dual, 6 barrel)

INDY CYLINDER

A few comparisons:
5.7 stock intake vs drag pak (similar to tall Ritter intake): Stock 5.7L Hemi intake vs the Drag Pack Single Plane | AutoMoto Tale

Prefix (formerly known as Arrow Racing) vs. Drag Pak: Dyno comparison between Arrow intake and Ritter DP