340 six pak setup

halfafish said
"The Mopar Six-Pack Engine Handbook"

Informative book to build/restore a six pack engine. Geared to the engine as a whole rather than induction system specific.

72Dart6pack said
Center carbs on ALL 6 packs are 500 cfm. 350 cfm Outboard

I do believe you have that backwards. Compare the throttle bore diameters in Karl's post (#9).