Sonoramic Intake

whitepunkonnitro said
The intake castings are the same for B and RB, but the balance tube and exhaust manifolds are specific to each

So this set-up (intake and exhaust manifolds) will either fit the B or the RB (but not both) since it came off a 383 it narrows it down??
I've read that there were both B and RB 383 engines in the early years??
treblig