If you go to the Brodix.com site, (
Brodix ) they have flow numbers for there heads. The small block MoPar has 3-ish to choose from. There is the NASCAR "spec" head, the B1BA and the B1BA-MC which is a moved centerline head, AKA, like a W2 or 5 head with the moved oushrod. The 2 heads can be CNC ported.
The B1A is around the same as the Edelbrock head and the B1A-MC has flow rates like a well done W5.
Brodix flow charts;
B1 Series/15°/18° – Brodix
Check out the shadydell web site for his take on those heads.
Shady Dell Speed Shop