340 w/360 heads, 6 pack & air cleaner help

I did modify a Mr gasket Chevy thremostat housing to work.

I think Obrien Truckers might have the finned air cleaners I need.
Some web searching on the carb to find the proper baseline main jets, I found the same info on the carbs. They are definately Mopar high performance replacements for the stock vacuum setup from over the counter=offroad use.

Car is running rich at all rpms, so I am trying jets, etc.