Need some intake help

Agreed. For this intake to work well, a hi stall converter and numericaly high numbered rear ratio will help tons.
On the use of No2, a single plane works best, though a dual plane is OK. It's not a must have to run with No2.
The Offy has fuel distribution problems that can be corrected via the MoPar engines book. They tell you where to plave the fuel damns in the intake and there diamentions.