As much as I like the WWC Stromberg, it does have some issues . . . like the air cleaner stud, being over-torqued for years, will pull that part of the air horn upward, which compromises the seal of the float bowl to the air horn. Other than fuel being sucked out of the float bowl when the choke plate is more closed (as in a cold start), it also means the vac passage to the power valve is openned. Which means the carb mixture is on "power" all of the time, resulting in 12mpg no matter what.
To get past that, after trying several spacer air horn gaskets, I went to an OEM Holley 2210 for a '70 Chrysler 383 application. A true bolt-on situation, just get the thick OEM base gasket for best results. Been there, done that. Better throttle response and fuel economy on the highway.
But, with time, the Holley 2210 carb can be prone to the same air cleaner stud over-torque situation. Except that Chrysler/Holley put out a TSB and "fix kit" for that issue.
As archaic as the Carter BBD might look, the way the air cleaner stud is attached should not cause the air horn deformation issue, I believe. As almost all other Carter carburetors of that era, the BBD 1.5 should provide good everyday performance. BTAIM
I fully understand the desiree to put on the car what it came with, BUT there can be pitfalls in doing that with a 2bbl Stromberg or Holley carb.
Just my experiences,
CBODY67